1. Introduction
This manual provides essential instructions for the safe and proper use, maintenance, and care of your Umarex Glock 19 Gen3 .177 Caliber BB Gun Air Pistol. Please read this manual thoroughly before operating the air pistol. Retain this manual for future reference.
2. Safety Information
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
General Safety Rules:
- Always treat the air pistol as if it were loaded.
- Always point the air pistol in a safe direction.
- Keep your finger off the trigger until you are ready to shoot.
- Be sure of your target and what is beyond it.
- Always wear eye protection when handling or shooting the air pistol.
- This air pistol is not a toy. Adult supervision is required. Misuse or careless use may cause serious injury or death.
- Due to its realistic appearance, never brandish or display this air pistol in public. It could be mistaken for a firearm, leading to dangerous situations.
3. Package Contents
Upon opening your package, ensure all the following items are present:
- Umarex Glock 19 Gen3 .177 Caliber BB Gun Air Pistol
- 15-Shot Magazine
- Instruction Manual
Note: A 12-gram CO2 cartridge is required for operation and is not included in the package.

Figure 1: Umarex Glock 19 Gen3 Air Pistol in its retail packaging.

Figure 2: Rear view of the packaging with product details.

Figure 3: Detailed view of safety warnings on the packaging.
4. Setup
4.1. Loading BBs into the Magazine
- Press the magazine release button to remove the magazine from the air pistol.
- Pull down the follower spring tab located on the side of the magazine until it locks into place at the bottom.
- Insert .177 caliber steel BBs into the loading port until the magazine is full (capacity: 15 BBs).
- Carefully release the follower spring tab, ensuring BBs are held securely.
- Insert the loaded magazine back into the air pistol until it clicks into place.
4.2. Installing the CO2 Cartridge
- Ensure the air pistol is unloaded and the safety is engaged.
- Locate the CO2 compartment at the base of the grip.
- Open the compartment cover.
- Insert a 12-gram CO2 cartridge into the compartment with the narrow neck facing upwards.
- Use the integrated Allen wrench or a suitable tool to tighten the screw at the bottom of the compartment until the CO2 cartridge is pierced and sealed. Do not overtighten.
- Close the compartment cover.
5. Operating Instructions
5.1. Firing the Air Pistol
- With the magazine loaded and CO2 installed, ensure the air pistol is pointed in a safe direction.
- Disengage the trigger safety.
- Pull the trigger to fire. The air pistol features an automatic cocking mechanism.
5.2. Safety Features
The Umarex Glock 19 Gen3 includes a trigger safety mechanism. This safety must be disengaged before the air pistol can be fired. Always engage the safety when the air pistol is not in use or when handling it.
5.3. Sights and Accessories
The air pistol is equipped with fixed Glock-style sights for aiming. It also features an integrated Weaver rail, allowing for the easy mounting of compatible accessories such as lights or lasers.

Figure 4: Side view of the Umarex Glock 19 Gen3 Air Pistol.

Figure 5: Left side view with Glock markings.

Figure 6: Right side view of the air pistol.

Figure 7: Front view of the air pistol.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your air pistol.
- Cleaning: Periodically clean the exterior of the air pistol with a soft, damp cloth. Avoid using harsh chemicals.
- Lubrication: Apply a small amount of silicone oil to moving parts and seals as needed to maintain smooth operation and prevent wear. Refer to specialized airgun maintenance guides for detailed lubrication points.
- Storage: Store the air pistol in a cool, dry place, unloaded and with the CO2 cartridge removed. Keep it out of reach of children and unauthorized users.
7. Troubleshooting
If you encounter issues with your Umarex Glock 19 Gen3, consider the following common solutions:
- Low Velocity or No Firing: Check if the CO2 cartridge is properly installed and fully charged. Ensure the magazine is correctly loaded with BBs.
- BBs Not Feeding: Verify that the magazine is inserted correctly and the follower spring is not jammed. Use only recommended .177 caliber steel BBs.
- Leakage: If you hear a hissing sound, the CO2 cartridge might not be sealed properly, or a seal may be damaged. Re-install the CO2 cartridge or inspect seals for wear.
For persistent issues, please contact Umarex USA customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Umarex |
| Model Name | GLOCK 19 Gen3 Air Pistol |
| Caliber | .177 |
| Rounds | 15 |
| Air Gun Power Type | CO2 (12-gram cartridge) |
| Product Dimensions (LxWxH) | 7.25" x 1.75" x 5.75" |
| Item Weight | 1.6 Pounds |
| Barrel Material | Metal |
| Frame Material | Polymer |
| UPC | 723364552007 |
| Part Number | 2255200 |
9. Warranty and Support
The Umarex Glock 19 Gen3 Air Pistol comes with a manufacturer's warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the documentation included with your product or visit the official Umarex USA website.
For technical support, parts, or service inquiries, please contact Umarex USA directly. Their contact information can typically be found on their official website or in the product packaging.





