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Glock 17 Gen4 CO2 - Metal slide, GBB - BLACK (Glock Licensed) View larger
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Umarex Glock 17 Gen4 GBB CO2 Pistol - Black

CO2 GBB Pistol Glock 17 Gen4 by Umarex in cooperation with VFC, in black finish.

Metal slide and authentic Glock markings with official license.

CO2-powered with velocity up to 115 m/s (1.3 J).

Short slide travel for more shots per cartridge.

Adjustable Hop-Up for improved accuracy.

RIS rail under the barrel for flashlight or laser.

Metal magazine for 18 BBs.

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Accessories

Glock 17 Gen4 by Umarex

The Glock 17 Gen4 CO2 version by Umarex and VFC is a fully licensed replica of the legendary Austrian service pistol, offering realistic design, strong performance, and high-quality build. With its metal slide, polymer frame, and GBB (Gas Blowback) system, this replica feels and performs like the real thing.
The pistol features a shorter slide travel (compared to the Green Gas version), resulting in better gas efficiency and more shots per 12g CO2 cartridge. The blowback is slightly milder since the slide moves only to chamber the next BB. The pistol uses a CO2 cartridge stored inside the magazine, providing reliable performance even in cold weather.
The Gen4 model features improved ergonomics with a textured grip and a larger magazine release button.

Internal Components

The pistol is equipped with a high-quality trigger mechanism that offers smooth operation without cocking. Inside is an adjustable hop-up chamber with a VSR-compatible bucking, ensuring consistent performance and precise trajectory. The 97 mm brass barrel adds to accuracy and long-term durability.

External Construction

The polymer frame ensures lightweight handling and a comfortable grip, while the metal slide with official Glock markings adds to the realism of the replica. A single-slot RIS rail is located at the front of the frame for mounting tactical accessories such as a flashlight or laser. The replica is fully compatible with standard Glock 17 holsters, making it a great choice for training or reenacting.

Key Features

  • Official Glock license: Authentic appearance with original markings.
  • Blowback system: Realistic feel thanks to moving slide (shorter travel).
  • CO2-powered: Stable performance even with frequent use.
  • Polymer frame and metal slide: Lightweight and durable construction.
  • Adjustable hop-up: Consistent accuracy and customizable trajectory.
  • RIS rail: Mount accessories under the barrel.
  • 18 BB magazine: Metal, with internal CO2 cartridge compartment.
  • Safety features: Trigger safety and manual safety.

Technical Specifications

  • Power source: CO2
  • Firing mode: Semi-auto
  • Velocity: 115 m/s (1.3 J)
  • Hop-Up: Adjustable
  • Magazine capacity: 18 BBs
  • Magazine type: Spring-fed, metal
  • Gun length: 204 mm
  • Inner barrel length: 97 mm
  • Weight: 745 g
  • Material: Metal slide, polymer frame
  • RIS rail: Yes (under barrel)
  • Recommended BB weight: 0.28 – 0.32 g
  • Suppressor thread: No

Package Contents

  • Glock 17 Gen4 CO2 GBB airsoft pistol
  • CO2 magazine for 18 BBs
  • User manual
ColorBlack
Muzzle velocity (m/s)115 (m/s)
Recommended weight of ammunition0,28g - 0,32g
Length205 (mm)
Inner barrel length (mm)97 (mm)
Weight (g)750 (g)
Body/receiver materialMetal / ABS
NozzlePlastic
Hop-Up chamber materialMetal
Magazine materialMetal
High-cap / Mid-capMid-cap
Magazine capacity18
BlowbackYES
Weapon accessoriesYes