Umarex Glock 17 Gen4 GBB CO2 Airsoft Pistol – Black
The Umarex Glock 17 Gen4 CO2 GBB is an officially licensed airsoft replica of the legendary Austrian service pistol, developed in cooperation with VFC. Designed for realism, durability, and consistent performance, this CO2-powered gas blowback pistol is an excellent choice for airsoft players, collectors, and training purposes.
Featuring a metal slide with authentic Glock markings and a reinforced polymer frame, the Glock 17 Gen4 delivers a realistic look and feel. The blowback system provides convincing recoil, while the shorter slide travel improves CO2 efficiency, allowing more shots per 12 g cartridge compared to standard Green Gas versions.
CO2 Power & Efficient Blowback System
Powered by a 12 g CO2 cartridge housed inside the magazine, this pistol reaches velocities of up to 115 m/s (1.3 Joules). The reduced slide travel ensures reliable cycling and stable performance even in colder weather, making it a dependable sidearm year-round. The recoil is slightly milder but optimized for efficiency and longevity.
Gen4 Ergonomics & Practical Design
The Gen4 frame features a textured grip for enhanced control and a larger, easier-to-use magazine release. A single-slot RIS / Picatinny rail under the barrel allows the mounting of tactical accessories such as flashlights or laser units, enhancing usability in CQB and low-light scenarios.
Internal Components & Accuracy
Internally, the pistol is equipped with a smooth and reliable trigger mechanism that does not require cocking. The adjustable hop-up chamber uses a VSR-compatible bucking, ensuring consistent BB trajectory and improved accuracy. A 97 mm brass inner barrel contributes to precision and long-term durability.
Holster Compatibility & Training Use
With realistic dimensions and weight, the Glock 17 Gen4 CO2 fits standard Glock 17 holsters, making it ideal for training, reenactment, and MilSim loadouts. The metal magazine holds 18 BBs and integrates the CO2 compartment for a clean and authentic appearance.
Pair this pistol with quality ammunition from our Airsoft BBs collection or explore more sidearms in the Airsoft Pistols category.
Key Features
- Officially licensed Glock 17 Gen4 replica
- CO2-powered GBB system with improved efficiency
- Metal slide and durable polymer frame
- Short slide travel for more shots per CO2 cartridge
- Adjustable hop-up with VSR-compatible bucking
- RIS rail for flashlight or laser
- Metal CO2 magazine with 18 BB capacity
Package Contents
- Umarex Glock 17 Gen4 CO2 GBB Airsoft Pistol
- CO2 magazine for 18 BBs
- User manual
Technical Specifications
| Color |
Black |
| Power Source |
CO2 (12 g cartridge) |
| Fire Mode |
Semi-auto |
| Blowback |
Yes (short slide travel) |
| Muzzle Velocity |
Up to 115 m/s (1.3 J) |
| Recommended BB Weight |
0.28 g – 0.32 g |
| Magazine Capacity |
18 BBs |
| Length |
204 mm |
| Inner Barrel Length |
97 mm |
| Weight |
745 g |
| Frame Material |
Polymer |
| Slide Material |
Metal |
| Hop-Up |
Adjustable |
| Accessory Rail |
RIS / Picatinny (under barrel) |
