Installation Guide for SILENCERCO models including: AC2604, AC142, 33 Dead Air Nomax, 33, Dead Air NomaxAir Nomax, Air NomaxAir Nomax, NomaxAir Nomax, Nomax
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6 ago 2024 — PART 1 OF 2: THIS DOCUMENT SERVES AS A GUIDE DETAILING RECOMMENDED MACHINING TOLERANCES AND THE COMPATIBILITY OF. CENTERFIRE RIFLE MUZZLE THREADS WITH ...16 pagine
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DocumentDocument15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 K K J J H H G G F F MUZZLE THREAD GUIDE E E PART 1 OF 2: THIS DOCUMENT SERVES AS A GUIDE DETAILING RECOMMENDED MACHINING TOLERANCES AND THE COMPATIBILITY OF CENTERFIRE RIFLE MUZZLE THREADS WITH SILENCERCO ACCESSORIES. WHILE THESE SPECIFICATIONS AND TOLERANCES MAY ALIGN WITH SOME OTHER MANUFACTURERS' PRODUCTS AND EXHIBIT COMMONALITY WITH MOST OF SAAMI'S SPECIFICATIONS, THE D RESPONSIBILITY FOR ANY DAMAGE, INJURY, OR INCOMPATIBILITY WITH OTHER MANUFACTURERS' PRODUCTS RESTS WITH THE END USER D AND/OR THE MACHINIST. IF THE FACTORY BARREL CROWN IS REMOVED DURING THE MACHINING PROCESS, IT IS THE RESPONSIBILITY OF THE MACHINIST TO CUT A NEW CROWN. ALL NFA RULES APPLY WHEN SELECTING RIFLE BARREL LENGTHS. C C B B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 SECTION 1: RIFLE PROPRIETARY AND CONFIDENTIAL THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY A REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE MUZZLE THREADS SHEET SIZE D A1 DRAWING REVISION A Jared H. 3/4/2024 SCALE: 1:1 SHEET 1 OF 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 15 14 13 12 11 10 9 NOTE: 1/2 - 28 (.500-28) RIFLE BARREL THREAD IS MOST COMMONLY USED WITH 22 CALIBER, 9MM & 30 CALIBER. K SILENCERCO OFFERS A MOUNTING OPTION FOR ALL OF OUR PRODUCTS WITH 1/2 - 28 THREADS. ALL SILENCERCO 1/2 - 28 CENTERFIRE RIFLE ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . B J SECTION VIEW WITH 1/2 - 28 9MM 3 LUG MOUNT (AC2604) FOR PISTOL CALIBER & SUBSONIC RIFLE APPLICATIONS. B H 8 7 6 5 .007 X 45° R.010 MAX (WITHOUT THREAD RELIEF) DETAIL A SCALE 30 : 1 .500 MAX A (SAME AS THREAD MAJOR) 4 THREAD TYPE PITCH MAJOR 3 2 1 .500-28 UNEF-3A .500-28 UNS-2A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .4754 .0014 .4739 .0019 .4967 .0032 .4957 .0033 J EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. .025±.005 X 45° H G SECTION VIEW WITH 1/2 - 28 5.56/.223 ASR MUZZLE BRAKE (AC142). OTHER CALIBER MUZZLE BRAKES ARE AVAILABLE IN THE 1/2 - 28 THREAD PATTERN, SUCH AS: 6.5MM (AC4753), 30 CAL(AC1282), A SINGLE PORT 9MM (AC2628) & A THREAD OVER MUZZLE DEVICE (AC5232) B F A BARREL AXIS/BORE G F E SECTION VIEW WITH 1/2 - 28 5.56/.223 ASR FLASH HIDER (AC141). OTHER CALIBER FLASH HIDERS ARE AVAILABLE IN THE 1/2 - 28 THREAD PATTERN, SUCH AS: 9MM (AC1570)& 30 CAL(AC1283) ALSO, 5.56 CAL CLOSED-TINE (AC5326) B D .560 MIN MUZZLE DEVICE SHOULDERING SURFACE B .080 MAX DISTANCE FROM FIRST FULL THREAD TO SHOULDER .640 .600 .0005 A WITH OPTIONAL/RECOMMENDED THREAD RELIEF B C .007 X 45° B .0005 A THREAD MUST PASS INTO THE SECTION VIEW WITH 1/2 - 28 ALPHA DIRECT THREAD (AC633) CHARLIE 1/2 - 28 DT(AC4740) & BRAVO 1/2 - 28 DT (AC1415) HAVE A SIMILAR INTERIOR THREAD PROFILE. THREAD RELIEF, BUT CANNOT CONTACT THE SHOULDER @ B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, B 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 6. UNLESS TIMING WITH SHIMS, ENSURE THERE'S NO VISIBLE GAP BETWEEN THE MUZZLE DEVICE AND LOCATION B . A 7. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. 8. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. 9. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. 15 14 13 12 2X R.016 MAX (W/THREAD RELIEF) 11 10 *.060 DETAIL B SCALE 25 : 1 9 45° 8 .433±.005 7 6 5 E D C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE DECIMALS: X.X .050 X.XX .010 X.XXX .005 THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF .500-28 CENTERFIRE RIFLE MUZZLE THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 2 OF 16 4 3 2 1 15 14 13 12 11 10 9 NOTE: M13X.75 RIFLE BARREL THREAD IS MOST COMMONLY USED WITH PENCIL & SPORTER BOLT ACTION K RIFLES ORIGINALLY EQUIPPED WITH A COMPENSATOR, SUCH AS THE BROWNING R "X BOLT" SERIES ETC. ALL SILENCERCO M13X.75 CENTERFIRE RIFLE ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . J H 8 7 6 5 .007 X 45° R.010 MAX (WITHOUT THREAD RELIEF) DETAIL W SCALE 30 : 1 W .5080 (SAME AS THREAD MAJOR) 4 THREAD TYPE PITCH MAJOR 3 2 1 M13X.75 4H6H M13X.75 4G6G K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .4913 .0013 .4905 .0013 .5090 .0028 .5082 .0028 J EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. .024±.005 X 45° H G F B SECTION VIEW WITH M13X.75 ALPHA DIRECT THREAD (AC2629) ALSO AVAILABLE IN BRAVO DIRECT THREAD (AC2630) & CHARLIE DIRECT THREAD (AC4745) E .050 MAX DISTANCE FROM FIRST FULL THREAD TO SHOULDER .550 MIN .640 .600 MUZZLE DEVICE SHOULDERING SURFACE B .0005 A D WITH OPTIONAL/RECOMMENDED THREAD RELIEF B .007 X 45° C .0005 A THREAD MUST PASS INTO THE THREAD RELIEF, BUT CANNOT Y CONTACT THE SHOULDER @ B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, B 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 6. UNLESS TIMING WITH SHIMS, ENSURE THERE'S NO VISIBLE GAP BETWEEN THE MUZZLE DEVICE AND LOCATION B . A 7. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. 8. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. 9. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. 15 14 13 12 2X R.016 MAX (W/THREAD RELIEF) 11 10 *.060 DETAIL Y SCALE 25 : 1 9 45° 8 .450±.005 7 6 5 A BARREL AXIS/BORE G F E D C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE DECIMALS: X.X .050 X.XX .010 X.XXX .005 THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF M13X.75 CENTERFIRE RIFLE MUZZLE THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 3 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 7 6 5 NOTE: 9/16-24 (.5625-24) RIFLE BARREL THREAD IS MOST COMMONLY USED WITH 5.56 THROUGH .40 CALIBER/10MM. K ALL SILENCERCO 9/16-24 CENTERFIRE RIFLE ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . .007 X 45° B J R.010 MAX (WITHOUT RELIEF) DETAIL A SCALE 30 : 1 H SECTION VIEW WITH 9/16 - 24 45 CAL 3 LUG MOUNT (AC2606). FOR PISTOL CALIBER & SUBSONIC RIFLE APPLICATIONS. A ( .558) SAME AS THREAD MAJOR 4 THREAD TYPE PITCH MAJOR MINOR 3 2 1 .5625-24 UNEF-3A .5625-24 UNEF-2A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .5339 .0015 .5322 .0020 .5589 .0036 .5577 .0036 .5170 MAX .5162 MAX J EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. H B G G A BARREL AXIS/BORE F F SECTION VIEW WITH 9/16 - 24 7.62/30 CAL ASR MUZZLE BRAKE (AC1276). A 9/16 - 24 9MM ASR MUZZLE BRAKE (AC4766) IS ALSO AVAILABLE. E B D .080 MAX DISTANCE FROM E FIRST FULL THREAD TO SHOULDER .640 .600 MUZZLE DEVICE SHOULDERING SURFACE B .0005 A D C SECTION VIEW WITH 9/16-24 ALPHA DIRECT THREAD (AC822) CHARLIE 9/16-24 DT(AC4744) & BRAVO 9/16-24 DT (AC2435) HAVE A SIMILAR INTERIOR THREAD PROFILE. B .0005 A WITH OPTIONAL/RECOMMENDED THREAD RELIEF .007 X 45° B THREAD MUST PASS INTO THE THREAD RELIEF, BUT CANNOT CONTACT THE SHOULDER @ B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, B 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 6. UNLESS TIMING WITH SHIMS, ENSURE THERE'S NO VISIBLE GAP BETWEEN THE MUZZLE DEVICE AND LOCATION B . A 7. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. 8. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. 9. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. 2X R.016 MAX (WITH RELIEF) 15 14 13 12 11 10 *.060 DETAIL B SCALE 25 : 1 9 45° 8 .486±.003 7 6 5 C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE DECIMALS: X.X .050 X.XX .010 X.XXX .005 THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF .5625-24 CENTERFIRE RIFLE MUZZLE THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 4 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 NOTE: M15X1 RIFLE BARREL THREADS ARE MOST COMMONLY USED WITH 5.56 & .308 CALIBER RIFLES SUCH AS K THE HK R MODELS 33, 91, 93 & G3. THIS IS NOT A POPULAR THREAD OUTSIDE OF THOSE PLATFORMS. ALL SILENCERCO M15X1 CENTERFIRE RIFLE ACCESSORIES SHOULDER ON THE NOSE, OR @ LOCATION B . .007 X 45° R.010 J H G .845 DETAIL R SCALE 30 : 1 (COSMETIC REPRESENTATION OF COMMON M15X1 BARREL PROFILE) B F E SECTION VIEW WITH M15X1 .30 CAL ASR FLASH HIDER (AC233). 7 6 5 .630 MAX R ( .587) SAME AS THREAD MAJOR 4 THREAD TYPE PITCH MAJOR MINOR 3 2 1 M15 X 1-4H6H M15 X 1-4G6G K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .5635 .0015 .5624 .0015 .5870 .0035 .5860 .0035 .5479 MAX .5469 MAX J EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. H .030 .005 X 45 G A BARREL AXIS/BORE F B BARREL NOSE .0005 A MUZZLE DEVICE SHOULDERING SURFACE E .570 .490 MIN THREAD DEPTH 0 D WITH OPTIONAL/RECOMMENDED THREAD RELIEF C T .080* 45° B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 6. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. A 7. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. 8. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. 2X R.016 MAX (WITH RELIEF) DETAIL T SCALE 25 : 1 .533±.005 15 14 13 12 11 10 9 8 7 6 D C B .0005 A 5 B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE DECIMALS: X.X .050 X.XX .010 X.XXX .005 THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF M15X1 CENTERFIRE RIFLE MUZZLE THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 5 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 7 6 NOTE: 5/8-24 (.625-24) RIFLE BARREL THREAD IS MOST COMMONLY USED WITH 7.62MM/30 CALIBER THROUGH .458 CALIBER. K ALL SILENCERCO 5/8-24 CENTERFIRE RIFLE ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . .007 X 45° B J SECTION VIEW WITH 5/8 - 24 45 CAL 3 LUG MOUNT (AC2603). H ALSO AVAILABLE IN 5/8 - 24 9MM (AC2609) FOR PISTOL CALIBER & SUBSONIC RIFLE APPLICATIONS. R.010 MAX (WITHOUT RELIEF) DETAIL A SCALE 30 : 1 ( .621) SAME AS THREAD MAJOR A B G 5 THREAD TYPE PITCH MAJOR MINOR 4 3 2 1 .625-24 UNEF-3A .625-24 UNEF-2A .625-32 UN-3A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES .5964 .0015 .5947 .0020 .6033 .0013 .6214 .0036 .6202 .0036 .6220 .0030 .5799 MAX .5787 MAX .5910 MAX J EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. H G A BARREL AXIS/BORE F F SECTION VIEW WITH 5/8 - 24 7.62/30 CAL ASR MUZZLE BRAKE (AC691). OTHER CALIBER MUZZLE BRAKES ARE AVAILABLE IN THE 5/8 - 24 THREAD PATTERN, SUCH AS: 6.5MM (AC4752), .338 CAL (AC857) & .458 CAL (AC1733). A 5/8 - 32 .458 CAL ASR MUZZLE BRAKE (AC1557) & 5/8-24 THREAD OVER MUZZLE DEVICE (AC5233) ARE ALSO AVAILABLE. E B .080 MAX DISTANCE FROM E FIRST FULL THREAD TO SHOULDER .640 .600 MUZZLE DEVICE SHOULDERING SURFACE B .0005 A D D WITH OPTIONAL/RECOMMENDED THREAD RELIEF SECTION VIEW WITH 5/8 - 24 ALPHA DIRECT THREAD (AC634) C CHARLIE 5/8 - 24 DT(AC4743) & BRAVO 5/8 - 24 DT (AC669) HAVE A SIMILAR INTERIOR THREAD PROFILE. .0005 A B .007 X 45° THREAD MUST PASS INTO THE B THREAD RELIEF, BUT CANNOT CONTACT THE SHOULDER @ B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, B 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 6. UNLESS TIMING WITH SHIMS, ENSURE THERE'S NO VISIBLE GAP BETWEEN THE MUZZLE DEVICE AND LOCATION B . A 7. 8. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. 9. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. 15 14 13 12 2X R.016 MAX (WITH RELIEF) 11 10 *.060 DETAIL B SCALE 25 : 1 9 45° 8 .548±.003 7 6 5 C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL .625-24 & .625-32 UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE DECIMALS: PROPERTY OF SILENCERCO, LLC. CENTERFIRE RIFLE X.X .050 X.XX .010 X.XXX .005 ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF MUZZLE THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 6 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 NOTE: 11/16 - 24 (.6875-24) RIFLE BARREL THREADS ARE MOST COMMONLY USED WITH .450 CALIBER RIFLES. K ALL SILENCERCO 11/16 - 24 CENTERFIRE RIFLE ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . J B H SECTION VIEW WITH 11/16 - 24 .458 CAL ASR MUZZLE BRAKE (AC1961). G R.010 MAX (WITHOUT RELIEF) B F 7 .007 X 45° DETAIL N SCALE 30 : 1 N 6 5 ( .683) SAME AS THREAD MAJOR 4 THREAD TYPE PITCH MAJOR MINOR 3 2 1 .6875-24 UNEF-3A .6875-24 UNEF-2A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .6589 .0015 .6572 .0020 .6839 .0036 .6827 .0036 .6379 MAX .6367 MAX J EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. 45° H .035±.005 G A BARREL AXIS/BORE F E .080 MAX DISTANCE FROM E .790 MIN FIRST FULL THREAD TO SHOULDER SECTION VIEW WITH 11/16 - 24 BRAVO DIRECT THREAD (AC2439) CHARLIE 11/16 - 24 DT(AC4741) HAS A SIMILAR INTERIOR THREAD PROFILE. MUZZLE DEVICE SHOULDERING SURFACE B .600±.005 .0005 A D D WITH OPTIONAL/RECOMMENDED THREAD RELIEF P B C .0005 A .007 X 45° THREAD MUST PASS INTO THE THREAD RELIEF, BUT CANNOT CONTACT THE SHOULDER @ B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, B 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. *.081 45° 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 2X R.016 6. UNLESS TIMING WITH SHIMS, ENSURE THERE'S NO VISIBLE GAP (WITH RELIEF) BETWEEN THE MUZZLE DEVICE AND LOCATION B . A 7. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. 8. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. DETAIL P SCALE 25 : 1 9. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. .609±.003 15 14 13 12 11 10 9 8 7 6 5 C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE DECIMALS: PROPERTY OF SILENCERCO, LLC. .6875-24 CENTERFIRE RIFLE MUZZLE X.X .050 X.XX .010 X.XXX .005 ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 7 OF 16 4 3 2 1 15 14 13 12 11 10 9 NOTE: M18X1 & M18X1.5 RIFLE BARREL THREADS ARE MOST COMMONLY USED WITH .338 CALIBER RIFLES. K ALL SILENCERCO M18X1 & M18X1.5 CENTERFIRE RIFLE ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . 8 7 .007 X 45° J B H R.010 MAX (WITHOUT RELIEF) DETAIL A SCALE 30 : 1 6 THREAD TYPE PITCH MAJOR MINOR 5 4 3 2 1 M18 X 1-4H6H M18 X 1-4G6G M18 X 1.5-4H6H M18 X 1.5-4G6G K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .6815 .0015 .6806 .0015 .6685 .0018 .6672 .0018 .7051 .0035 .7040 .0035 .7040 .0046 .7027 .0046 .6660 MAX .6650 MAX .6447 MAX .6434 MAX EXTERNAL THREADS .002 A J A ( .705) SAME AS THREAD MAJOR FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. .030 .005 X 45 H SECTION VIEW WITH M18X1 .338 CAL ASR MUZZLE BRAKE (AC856). A M18X1.5 .338 CAL ASR MUZZLE BRAKE (AC855) IS ALSO AVAILABLE. G A BARREL AXIS/BORE G F F B E E .080 MAX DISTANCE FROM FIRST FULL THREAD TO SHOULDER .705±.005 SECTION VIEW WITH M18X1 BRAVO DIRECT THREAD (AC690) A M18X1.5 BRAVO DIRECT THREAD (AC735) IS ALSO AVAILABLE. MUZZLE DEVICE SHOULDERING SURFACE B .0005 A D D WITH OPTIONAL/RECOMMENDED THREAD RELIEF B B C .0005 A .007 X 45° THREAD MUST PASS INTO THE THREAD RELIEF, BUT CANNOT CONTACT THE SHOULDER @ B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, B 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 6. UNLESS TIMING WITH SHIMS, ENSURE THERE'S NO VISIBLE GAP BETWEEN THE MUZZLE DEVICE AND LOCATION B . A 7. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. 8. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. 9. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. 2X R.016 MAX (WITH RELIEF) 15 14 13 12 11 10 .080* DETAIL B SCALE 25 : 1 9 45° 8 .620±.005 7 6 5 C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE DECIMALS: PROPERTY OF SILENCERCO, LLC. M18X1/M18X1.5 CENTERFIRE RIFLE MUZZLE X.X .050 X.XX .010 X.XXX .005 ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 8 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 NOTE: 3/4-24 (.750-24) RIFLE BARREL THREADS ARE MOST COMMONLY USED WITH .338 CALIBER TO .458 CALIBER. K 3/4 - 20 (.750-20) RIFLE BARREL THREADS ARE LESS COMMON (BARRETT 98B/OLDER MRAD, ETC.) SILENCERCO OFFERS A 3/4 - 20 BRAVO DIRECT THREAD MOUNT (AC4757) ALL SILENCERCO 3/4 - 24 CENTERFIRE RIFLE ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . J R.010 MAX (WITHOUT RELIEF) H B G SECTION VIEW WITH 3/4 - 24 .458 CAL ASR MUZZLE BRAKE (AC2631). A 3/4 - 24 .338 CAL ASR MUZZLE BRAKE (AC858) IS ALSO AVAILABLE FROM SILENCERCO. F 7 6 .007 X 45° DETAIL A SCALE 30 : 1 ( .746) SAME AS THREAD MAJOR A 5 THREAD TYPE PITCH MAJOR MINOR 4 3 2 1 .750-24 UNEF-3A .750-24 UNEF-2A .750-20 UNEF-3A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES .7213 .0015 .7196 .0020 .7158 .0016 .7464 .0036 .7452 .0036 .7459 .0040 .7049 MAX .7037 MAX .6959 MAX J EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. 45° H .035±.005 G A BARREL AXIS/BORE F B E D SECTION VIEW WITH 3/4 - 24 ALPHA DIRECT THREAD (AC668) CHARLIE 3/4 - 24 DT(AC4742) & BRAVO 3/4 - 24 DT (AC668) HAVE A SIMILAR INTERIOR THREAD PROFILE. C .825 MIN MUZZLE DEVICE SHOULDERING SURFACE B .080 MAX DISTANCE FROM FIRST FULL THREAD TO SHOULDER .615±.005 .0005 A B .0005 A WITH OPTIONAL/RECOMMENDED THREAD RELIEF B .007 X 45° THREAD MUST PASS INTO THE THREAD RELIEF, BUT CANNOT CONTACT THE SHOULDER @ B MACHINIST NOTES: UNLESS OTHERWISE SPECIFIED, B 1. REMOVE BURRS/BREAK ALL EDGES TO A MAX OF .005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 4. ALL NFA RULES APPLY TO RIFLE BARREL OVERALL LENGTH SELECTION. ASSEMBLY NOTES: 5. AVOID USING A CRUSH WASHER. 6. UNLESS TIMING WITH SHIMS, ENSURE THERE'S NO VISIBLE GAP BETWEEN THE MUZZLE DEVICE AND LOCATION B . A 7. UTILIZE ROCKSET OR ANOTHER HIGH-TEMPERATURE THREAD LOCKER. 8. TORQUE MUZZLE DEVICES BETWEEN 20-30 FT LBS. 9. FOR TIMING OF SILENCERCO MUZZLE BRAKES, USE THE SUPPLIED PRECISION SHIMS. 2X R.016 MAX (WITH RELIEF) *.060 45° DETAIL B SCALE 25 : 1 .673±.003 15 14 13 12 11 10 9 8 7 6 5 E D C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE DECIMALS: PROPERTY OF SILENCERCO, LLC. .750-24/.750-20 CENTERFIRE RIFLE MUZZLE X.X .050 X.XX .010 X.XXX .005 ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 9 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 K K J J H H G G F F E MUZZLE THREAD GUIDE E PART 2 OF 2: THIS DOCUMENT SERVES AS A GUIDE DETAILING RECOMMENDED MACHINING TOLERANCES AND THE COMPATIBILITY OF RIMFIRE & CENTERFIRE PISTOL MUZZLE THREADS WITH SILENCERCO ACCESSORIES. WHILE THESE D SPECIFICATIONS AND TOLERANCES MAY ALIGN WITH SOME OTHER MANUFACTURERS' PRODUCTS AND EXHIBIT COMMONALITY D WITH MOST OF SAAMI'S SPECIFICATIONS, THE RESPONSIBILITY FOR ANY DAMAGE, INJURY, OR INCOMPATIBILITY WITH OTHER MANUFACTURERS' PRODUCTS RESTS WITH THE END USER AND/OR THE MACHINIST. IF THE FACTORY BARREL CROWN IS REMOVED DURING THE MACHINING PROCESS, IT IS THE RESPONSIBILITY OF THE MACHINIST TO CUT A NEW CROWN. C C B B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 SECTION 2: RIMFIRE PROPRIETARY AND CONFIDENTIAL THE INFORMATION CONTAINED & CENTERFIRE PISTOL IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SILENCERCO, LLC IS PROHIBITED. MUZZLE THREADS A DRAFTER DATE SHEET SIZE D A1 DRAWING REVISION A Jared H. 3/4/2024 SCALE: 2:1 SHEET 10 OF 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 15 14 13 12 11 10 9 8 NOTE: 1/2-28 (.500-28) IS A COMMON RIMFIRE BARREL THREAD FOR .17 TO .22 CALIBER CHAMBERED FIREARMS. K ALL OF SILENCERCO'S R DELTA ADAPTERS & RIMFIRE CANS ARE EQUIPPED WITH 1/2-28 "SPARROW PROFILE" THREADS. ALL SILENCERCO R 1/2 -28 RIMFIRE PISTOL ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . .500-28 STANDARD RIMFIRE MUZZLE THREADS .0005 A BEHIND THREAD SHOULDERING SURFACE B THREADS INTO O-RING, NOT OPTIMAL FOR THE O-RING'S DURABILITY, BUT IT DOES ASSIST IN REDUCING J THE PENETRATION OF CARBON AND GASES WITHIN THE THREADS. 7 .450±.003 THREAD DESIGNED TO SHOULDER @ B ONLY H 6 5 EXTERNAL THREADS 0.002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. .025 X 45° C BARREL NOSE 4 THREAD TYPE PITCH MAJOR 3 2 1 .500-28 UNEF-3A .500-28 UNS-2A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .4754 .0014 .4739 .0019 .4967 .0032 .4957 .0033 J A BARREL AXIS/BORE H G VIEW WITH MOUNTED SPARROW .22 SCALE 6 : 1 F 45° 2X R.016 MAX G DETAIL N SCALE 25 : 1 .007 X 45° N F 0 *.060 .420 .400 .500-28 "SPARROW PROFILE" RIMFIRE MUZZLE THREADS .0005 A E O-RING ENGAGEMENT ON THE CYLINDRICAL BOSS OFFERS MORE EFFICIENT PROTECTION AGAINST THE INFILTRATION OF CARBON AND GASES. BEHIND THREAD SHOULDERING SURFACE B THREAD DESIGNED TO SHOULDER @ B ONLY D C EXTERNAL THREADS 0.002 A FOR THREAD SPECIFICATIONS, E SEE TABLE IN THE UPPER RIGHT. 2X .440±.003 C BARREL NOSE D 2X 60° A BARREL AXIS/BORE 3X R.016 MAX DETAIL L SCALE 25 : 1 .007 X 45° C B NOTES: UNLESS OTHERWISE SPECIFIED: VIEW WITH MOUNTED SPARROW .22 SCALE 6 : 1 1. REMOVE BURRS FROM ALL EDGES TO A MAX OF R.005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. A 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 15 14 13 12 11 10 9 0 *.080 *.316 .475±.004 L 8 7 .020 X 45° B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE DECIMALS: X.X .050 X.XX .010 X.XXX .005 THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF .500-28 RIMFIRE MUZZLE THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 11 OF 16 6 5 4 3 2 1 15 14 13 12 11 10 9 8 7 6 5 NOTE: 1/2-28 (.500-28) IS A COMMON PISTOL BARREL THREAD FOR 9MM CHAMBERED HANDGUNS. K MOST OF SILENCERCO'S R 9MM BARRELS ARE EQUIPPED WITH 1/2-28 THREADS. ALL SILENCERCO R 1/2 -28 CENTERFIRE PISTOL ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B .WITH THE EXCEPTION OF THE 1/2 - 28 SN (AC1756) PISTON WHICH SHOULDERS ON THE NOSE OR LOCATION C . .007 X 45° C SN PISTON .435 *.060 45° J LESS THAN .510 2X R.016 MAX SN PISTON RELIEF .510 H SECTION VIEW WITH 1/2 - 28 SN PISTON (AC1756) FOR TILTING BARREL LOCKING MECHANISMS/BOOSTER ASSEMBLIES WHERE SHOULDERING ON THE NOSE/ C IS NECESSARY. (THIN PROFILE BARRELS) SCALE 3:1 B G DETAIL G SCALE 25 : 1 BEHIND THREAD SHOULDERING SURFACE B IF SHOULDERING @ B .0005 A G SECTION VIEW WITH 1/2 - 28 PISTON (AC25) F FOR TILTING BARREL LOCKING MECHANISMS/BOOSTER ASSEMBLIES. A 1/2 - 28 XL PISTON (AC59) IS AVAILABLE FOR INCREASED DISTANCE TO THE FRONT OF THE SLIDE. SCALE 3:1 B E SECTION VIEW WITH 1/2 - 28 9MM 3 LUG MOUNT (AC2604) FOR FIXED BARREL APPLICATIONS. SCALE 3:1 D B C .550 MIN RECOMMENDED IF SHOULDERING @ B IF .500 OR LESS, SHOULDER @ C .100 MIN RECOMMENDED DISTANCE TO THE FRONT OF THE SLIDE SECTION VIEW WITH 1/2 - 28 ALPHA DIRECT THREAD (AC663) CHARLIE 1/2 - 28 DT(AC4740) & BRAVO 1/2 - 28 DT (AC1415) HAVE A SIMILAR INTERIOR THREAD PROFILE. B NOTES: FOR FIXED BARREL APPLICATIONS. SCALE 3:1 UNLESS OTHERWISE SPECIFIED: 1. REMOVE BURRS FROM ALL EDGES TO A MAX OF R.005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. A 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 15 14 13 12 11 10 9 8 7 THREAD RELIEF .450±.003 .420±.020 IF SHOULDERING @ B .450 MIN IF SHOULDERING @ C 6 5 4 THREAD TYPE PITCH MAJOR 3 2 1 .500-28 UNEF-3A .500-28 UNS-2A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .4754 .0014 .4739 .0019 .4967 .0032 .4957 .0033 J H EXTERNAL THREADS 0.002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. G .025 X 45° F A BARREL AXIS/BORE E C BARREL NOSE .0005 A IF SHOULDERING @ C D C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL .500-28 CENTERFIRE UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE DECIMALS: PROPERTY OF SILENCERCO, LLC. PISTOL MUZZLE X.X .050 X.XX .010 X.XXX .005 ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF THREADS ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 12 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 7 6 5 NOTE: 1/2 -36 (.500 -36) IS A RARE BARREL THREAD, FOR USE WITH 9MM CHAMBERED HANDGUNS K AND IS MORE COMMONLY USED IN PISTOL CALIBER CARBINES (COLT R ETC). SILENCERCO R DOESN'T OFFER PISTOL BARRELS THREADED IN 1/2 -32 OR 1/2 -36, ALL SILENCERCO R 1/2 -32 & 1/2 -36 ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B . 1/2 -32 (.500 -32) PISTOL BARREL THREADS ARE NOT COMMON AND ARE SEEN MORE IN PISTOL CALIBER CARBINE APPLICATIONS (H&K R ETC.). J SILENCERCO R OFFERS AN ALPHA DIRECT THREAD MOUNT FOR 1/2 -32 THREAD PATTERN (AC731), THE 1/2 -36 THREAD PATTERN IS OFFERED IN ALPHA DIRECT THREAD (AC150), 9MM 3 -LUG MUZZLE DEVICE (AC2607) AND AS A PISTON (AC57). .007 X 45° *.060 45° B H 2X R.016 MAX DETAIL H SCALE 25 : 1 SECTION VIEW WITH 1/2 - 36 PISTON (AC57) G FOR TILTING BARREL LOCKING MECHANISMS/BOOSTER ASSEMBLIES. SCALE 3:1 B F SECTION VIEW WITH 1/2 - 36 9MM 3 LUG MOUNT (AC2607) FOR FIXED BARREL APPLICATIONS. SCALE 3:1 E B D C B NOTES: SECTION VIEW WITH 1/2 - 36 ALPHA DIRECT THREAD (AC150) THE 1/2 - 32 ALPHA DIRECT THREAD (AC731) HAS A SIMILAR INTERIOR PROFILE. FOR FIXED BARREL APPLICATIONS. SCALE 3:1 UNLESS OTHERWISE SPECIFIED: 1. REMOVE BURRS FROM ALL EDGES TO A MAX OF R.005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. A 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 15 14 13 12 11 10 PISTON/THREAD MOUNT SHOULDERING SURFACE B .0005 A H .550 MIN RECOMMENDED .100 MIN RECOMMENDED DISTANCE TO THE FRONT OF THE SLIDE .450±.003 0.003 A .440 .400 9 8 7 6 5 4 3 2 1 THREAD TYPE PITCH MAJOR .500-36 UNS-2A .500-32 UN-2A .4793 .0017 .4739 .0019 K .4962 .0028 .4957 .0033 J H EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. G .025 X 45° F A BARREL AXIS/BORE E D C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL .500-32 & .500-36 UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE DECIMALS: PROPERTY OF SILENCERCO, LLC. CENTERFIRE PISTOL X.X .050 ANY REPRODUCTION IN PART X.XX .010 X.XXX .005 ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE MUZZLE THREADS SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 13 OF 16 4 3 2 1 15 14 13 12 11 10 9 8 7 NOTE: 9/16-24 (.5625-24) IS A COMMON BARREL THREAD FOR 40 S&W AND 10MM CHAMBERED HANDGUNS, ESPECIALLY IN AFTERMARKET BARRELS. K SILENCERCO'S R GLOCK R 23 (AC1757) & GLOCK R 22 (AC50) BARRELS ARE EQUIPPED WITH 9/16-24 THREADS. ALL SILENCERCO R 9/16-24 ACCESSORIES SHOULDER BEHIND THE THREADS, OR @ LOCATION B 9/16-28 (.5625-28) BARREL THREADS ARE NOT COMMON AND ARE SEEN MORE IN RIFLE APPLICATIONS (SAVAGE ETC.) SILENCERCO DOESN'T OFFER MOUNTS IN THE 9/16-28 THREAD PATTERN. .007 X 45° J *.060 45° 6 5 4 3 2 1 THREAD TYPE PITCH MAJOR THREAD RELIEF .5625-24 UNEF-3A .5625-24 UNS-2A .5625-28 UN-2A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT NOT CURRENTLY COMPATIBLE WITH SILENCERCO R ACCESSORIES .5339 .0015 .5322 .0020 .5363 .0018 .5589 .0036 .5338 .0036 .5518 .0032 .497 .003 .497 .003 .505 .003 J B H 2X R.016 MAX H DETAIL J SCALE 25 : 1 IF SHOULDERING @ B .0005 A EXTERNAL THREADS .002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. BEHIND THREAD SHOULDERING SURFACE B G SECTION VIEW WITH 9/16 - 24 PISTON (AC31) J G FOR TILTING BARREL LOCKING MECHANISMS/BOOSTER ASSEMBLIES. SCALE 3:1 .025 X 45° B F F E SECTION VIEW WITH 9/16 - 24 3 LUG MOUNT (AC2606) FOR FIXED BARREL APPLICATIONS. SCALE 3:1 B D A BARREL AXIS/BORE E C MUZZLE FACE .0005 A IF SHOULDERING @ C D C SECTION VIEW WITH 9/16 - 24 ALPHA DIRECT THREAD (AC822) CHARLIE 9/16-24 DT(AC4744) & BRAVO 9/16-24 DT (AC2435) HAVE A SIMILAR INTERIOR THREAD PROFILE. FOR FIXED BARREL APPLICATIONS. SCALE 3:1 B NOTES: UNLESS OTHERWISE SPECIFIED: 1. REMOVE BURRS FROM ALL EDGES TO A MAX OF R.005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. A 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 15 14 13 12 11 10 .610 MIN IF SHOULDERING @ B .100 MIN RECOMMENDED DISTANCE TO THE FRONT OF THE SLIDE 9 8 7 THREAD RELIEF (SEE TABLE) 0.003 A .440 IF SHOULDERING @ B C .420 .440 MIN IF SHOULDERING @ C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 .5625-24 & .5625-28 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE DECIMALS: X.X .050 THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART CENTERFIRE PISTOL X.XX .010 X.XXX .005 ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE MUZZLE THREADS SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 14 OF 16 6 5 4 3 2 1 15 14 13 12 11 10 9 NOTE: .578-28 IS A COMMON PISTOL BARREL THREAD FOR 45ACP CHAMBERED HANDGUNS. K SILENCERCO'S R 45 CALIBER PISTOL BARRELS ARE EQUIPPED WITH .578-28 THREADS. ALL SILENCERCO R .578-28 CENTERFIRE PISTOL ACCESSORIES SHOULDER ON THE NOSE OF THE THREADS, OR @ LOCATION B . J B 2X R.016 MAX H SECTION VIEW WITH .578 - 28 PISTON (AC24) FOR TILTING BARREL LOCKING MECHANISMS/BOOSTER ASSEMBLIES. A .578 - 28 XL PISTON (AC1346) IS AVAILABLE FOR INCREASED DISTANCE TO THE FRONT OF THE SLIDE. SCALE 3:1 G B .642 F BARREL CLEARANCE SECTION VIEW WITH .578 - 28 .45 CALIBER 3 LUG MOUNT (AC2605) FOR FIXED BARREL APPLICATIONS. SCALE 3:1 E 8 7 .007 X 45° 45° *.060 DETAIL K SCALE 25 : 1 B D .635 .585 ( .640 MAX FOR FITMENT WITH SILENCERCO ACCESSORIES) C .100 MIN RECOMMENDED DISTANCE TO THE FRONT OF THE SLIDE B NOTES: SECTION VIEW WITH .578 - 28 BRAVO DIRECT THREAD(AC1564) FOR FIXED BARREL APPLICATIONS. SCALE 3:1 UNLESS OTHERWISE SPECIFIED: 1. REMOVE BURRS FROM ALL EDGES TO A MAX OF R.005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. A 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 THREAD TYPE PITCH MAJOR .578-28 UNS-3A .578-28 UNS-2A K TIGHTER TOLERANCE & FIT, WILL WORK WITH SILENCERCO R ACCESSORIES RECOMMENDED FOR UNIVERSAL FIT .5534 .0014 .5518 .0019 .5748 .0032 .5736 .0032 J H EXTERNAL THREADS 0.002 A FOR THREAD SPECIFICATIONS, SEE TABLE IN THE UPPER RIGHT. .025 X 45° G K F A BARREL AXIS/BORE E B BARREL NOSE/SHOULDERING SURFACE .0005 A D THREAD RELIEF .525±.003 0.003 A .440±.020 0.001 B C B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL .578-28 UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE DECIMALS: PROPERTY OF SILENCERCO, LLC. CENTERFIRE PISTOL X.X .050 ANY REPRODUCTION IN PART X.XX .010 X.XXX .005 ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SILENCERCO, LLC IS PROHIBITED. ENGINEER DATE MUZZLE THREADS SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 15 OF 16 6 5 4 3 2 1 15 14 13 12 11 10 9 8 NOTE: M13.5 X 1LH IS A COMMON PISTOL BARREL THREAD FOR 9MM CHAMBERED HANDGUNS, MOST COMMONLY H&K R PLATFORMS. K ALL SILENCERCO R METRIC CENTERFIRE PISTOL ACCESSORIES SHOULDER ON THE NOSE OF THE THREADS, OR @ LOCATION B . B J .007 X 45° *.060 45° 2X R.016 MAX 7 6 5 4 3 2 1 THREAD TYPE M13.5X1-4G6G LH M14.5X1-4G6G LH M16X1-4G6G LH M16X1-4G6G RH K PITCH .5034 .0015 .5428 .0015 .6018 .0015 .6018 .0015 MAJOR .5269 .0035 .5663 .0035 .6254 .0035 .6254 .0035 "THREAD RELIEF " .472 .002 .512 .002 .571 .002 .571 .002 "MINIMUM BARREL " .530 .568 .626 .626 "DIM A" "DIM B" .5305 .0005 .4715 .0005 .5685 .0005 .5135 .0005 .6265 .0005 .5715 .0005 .6265 .0005 J .5715 .0005 "DIM C" .625 .625 .690 .690 H SCALE 25 : 1 H SECTION VIEW WITH M13.5 X 1 LH PISTON (AC26) FOR TILTING BARREL LOCKING MECHANISMS/BOOSTER ASSEMBLIES. "THREAD RELIEF " EXTERNAL THREADS 0.002 A OTHER SIMILAR PISTONS INCLUDE: M13.5 X 1LH XL PISTON (AC626), 0.003 A FOR THREAD SPECIFICATIONS, M14.5 X 1LH (AC27), M16 X 1LH (AC28) & M16 X 1RH (AC29). SEE TABLE IN THE UPPER RIGHT. " DIM A" G 0.002 A L " DIM B" G 0.002 A B F F A BARREL AXIS/BORE E E SECTION VIEW WITH M13.5 X 1LH BRAVO THREAD MOUNT M13.5 x 1LH (AC1563) D FOR FIXED BARREL APPLICATIONS. B B BARREL NOSE/SHOULDERING SURFACE .0005 A D M R.006 "DIM C" MINIMUM DISTANCE FROM NOSE TO THE FRONT OF THE SLIDE. .545±.002 .413±.002 0.001 B .148±.005 .109 0 .009 15° 20° C C .039 .020 45° B NOTES: SECTION VIEW WITH M13.5 X 1LH 3 LUG MOUNT (AC2602) FOR FIXED BARREL APPLICATIONS. SILENCERCO ALSO OFFERS A 3 LUG MOUNT IN M16 x 1LH 45ACP (AC2608) UNLESS OTHERWISE SPECIFIED: DETAIL M SCALE 24 : 1 B SILENCERCO, LLC 5511 S 6055 W WEST VALLEY, UT 84118 1. REMOVE BURRS FROM ALL EDGES TO A MAX OF R.005. 2. GAGE ALL THREADS BETWEEN 1 TO 3 TURNS MAX OF NO-GO. A 3. DIMENSIONS WITH " * " ARE TO A THEORETICAL INTERSECTION. INTERPRET GEOMETRIC TOLERANCING PER ASME Y14.5-2018 PROPRIETARY AND CONFIDENTIAL UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCH TOLERANCE DECIMALS: X.X .050 THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SILENCERCO, LLC. ANY REPRODUCTION IN PART M13.5,14.5 & 16X1 LH CENTERFIRE PISTOL X.XX .010 X.XXX .005 ANGULAR: .5 SURFACE FINISH: OR BETTER PERPENDICULARITY : .001/INCH OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SILENCERCO, LLC IS PROHIBITED. DRAFTER DATE MUZZLE THREADS SHEET SIZE D A1 DRAWING REVISION A CIRCULARITY : .0005 Jared H. 3/4/2024 SCALE: 10:1 SHEET 16 OF 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1