1. Introduction
This manual provides instructions for the installation, operation, and maintenance of your GplatHabse Red Dot Sight Mount Plate. This metal mounting plate is designed to securely attach various red dot optics to specific HK pistol models, enhancing target acquisition capabilities.
Compatible Pistol Models: HK P30, HK45, VP9/SFP9
Compatible Optic Types: RMR, Sentry, Frenzy 1x22x26 MOS MOJ, SRO, HK 407C, 507C
2. Safety Information
Always prioritize safety when handling firearms and accessories. Read and understand all instructions before attempting installation. If you are unsure about any step, consult a qualified gunsmith.
- Ensure the firearm is unloaded and cleared before beginning any work.
- Always point the firearm in a safe direction.
- Wear appropriate eye protection during installation.
- Do not modify the mount plate or firearm components.
- Keep small parts away from children.
3. Package Contents
Verify that all components are present before proceeding with installation.
- 1x GplatHabse Red Dot Sight Mount Plate
- Mounting Screws (various sizes for plate and optic attachment)
- Hex Wrenches (for installation)

Image 3.1: Contents of the GplatHabse Red Dot Sight Mount Plate package, including the plate, various screws, and hex wrenches.
4. Setup and Installation
Follow these steps carefully to install the mount plate and your red dot sight.
- Prepare Firearm: Ensure the firearm is unloaded and safe. Remove the magazine and visually and physically inspect the chamber to confirm it is empty.
- Remove Rear Sight: Carefully remove the existing rear sight from your HK pistol. This typically involves drifting it out of its dovetail slot using a sight pusher tool or a brass punch and hammer. Refer to your pistol's specific manual for detailed instructions on rear sight removal.
- Install Mount Plate: Slide the GplatHabse mount plate into the rear sight dovetail slot. Ensure it sits flush and securely. The plate is designed to fit precisely into the dovetail. Note: Some HK45 Compact Tactical models may have a slide rib that interferes with the plate. Verify compatibility with your specific model before installation.

Image 4.1: The GplatHabse mount plate featuring the dovetail adapter for secure fitment into the pistol's rear sight slot.
- Secure Mount Plate: Use the provided screws to secure the mount plate to the slide. Tighten screws evenly and firmly, but do not overtighten, as this can strip threads or damage components.
- Attach Red Dot Sight: Place your compatible red dot sight onto the GplatHabse mount plate. Use the appropriate screws provided with the mount plate or your red dot sight to attach the optic. Ensure the optic is oriented correctly and tightened securely according to the optic manufacturer's specifications.
- Function Check: After installation, perform a function check of your firearm to ensure all safeties and mechanisms operate correctly.
- Zero Optic: Take your firearm to a safe shooting range and zero your red dot sight according to its manufacturer's instructions.
5. Operating Instructions
Once installed and zeroed, the GplatHabse Red Dot Sight Mount Plate provides a stable platform for your optic. Operation of the red dot sight itself will follow the manufacturer's instructions for that specific optic. Always ensure the optic is securely attached before use.
6. Maintenance
Regular maintenance ensures the longevity and reliability of your mount plate.
- Cleaning: Wipe the mount plate with a clean, dry cloth after each use to remove dirt, debris, and moisture. For stubborn grime, a lightly oiled cloth can be used, followed by a dry wipe.
- Inspection: Periodically check all screws for tightness. Vibration from firing can loosen fasteners over time. Re-tighten as necessary, ensuring not to overtighten.
- Corrosion Prevention: The metal construction is durable, but prolonged exposure to moisture or harsh chemicals can cause corrosion. Store the firearm and mount in a dry environment.
7. Troubleshooting
If you encounter issues with your GplatHabse Red Dot Sight Mount Plate, consider the following:
- Mount Plate Does Not Fit: Double-check the compatibility with your specific HK pistol model (P30, HK45, VP9/SFP9). Some sub-variants or compact models may have slight differences. Ensure the rear sight dovetail is clear of obstructions.
- Red Dot Sight Loose: Ensure the screws attaching the red dot sight to the mount plate are correctly sized and tightened according to the optic manufacturer's specifications.
- Loss of Zero: This can be caused by loose mounting screws for either the plate or the optic. Re-tighten all screws and re-zero the optic. Excessive recoil or impact can also affect zero.
- Stripped Screws: Avoid overtightening screws during installation. If a screw is stripped, contact customer support for replacement parts.
8. Specifications
| Item Model Number | 3e014f82-bd01-4c3e-83a1-3616bc22d0b9 |
| Brand | GplatHabse |
| Material | Metal |
| Color | Black |
| Product Dimensions (L x W x H) | 1.89 x 0.98 x 0.31 inches |
| Item Weight | 0.774 ounces |
| Included Components | Mounting Plate, Screws and wrenches |
9. Warranty and Support
This product is covered by a return and exchange policy within one month of purchase. For support or warranty claims, please contact your retailer or the manufacturer directly.





