Umarex Glock 17 Gen 5 MOS .177 Cal CO2 Half Blowback BB Pistol

Glock-Authorized Gen 5 Design with Optics-Ready Slide: The Umarex Glock 17 Gen 5 MOS BB pistol offers shooters a highly realistic replica of the latest Gen 5 Glock firearm. Fully licensed and dimensionally accurate, this air pistol includes an MOS (Modular Optic System) configuration, allowing for the addition of a red dot optic using separately sold adapter plates (SKU 2211331). Fixed Glock-style white dot front and U-notch rear sights deliver a familiar sight picture for shooters accustomed to the real steel counterpart.

Half Blowback Action for Enhanced Efficiency: The pistol features a half blowback system—meaning the slide cycles partially with each shot, delivering a visual and tactile sense of realism without sacrificing CO2 efficiency. While it does not lock back on empty, the motion of the slide adds functional feedback. This setup makes the G17 Gen 5 MOS an ideal training tool for safe target practice or plinking, retaining key elements of recoil simulation while maximizing shot count.

Durable Metal Slide with Gen 5 Ergonomics: The pistol’s slide is constructed from metal alloy for added durability and realistic weight. Combined with a polymer lower frame that mirrors Gen 5 updates—such as an improved grip texture, ambidextrous slide stop, and flared magwell—this replica offers exceptional handling and comfort. The integrated accessory rail under the barrel accepts tactical lights or lasers to suit your application.

CO2-Powered with 18-Round Drop-Free Magazine: The 18-round magazine holds standard .177 caliber steel BBs and a single 12g CO2 cartridge. Expect velocities up to 370 FPS under ideal conditions and approximately 60 shots per cartridge. For longevity and performance, apply a drop of silicone oil to each cartridge before use and remove it after each session to preserve seal life.

Features

• Officially licensed Glock Gen 5 design with trademarks
• MOS configuration allows red dot optic installation (plates sold separately)
• White dot front and white U-notch rear fixed sights
• Half blowback slide for realism and improved CO2 efficiency
• Safe Action-style trigger system
• Metal alloy slide with polymer Gen 5 frame
• 370 FPS with standard steel BBs
• 18-round drop-free magazine with integrated CO2 compartment
• Picatinny-style accessory rail for lights/lasers
• Flared magwell and ambidextrous controls

Specifications

Caliber: .177 (4.5mm) steel BB
Powerplant: 12g CO2
Action Type: Semi-automatic, half blowback
Muzzle Velocity: Up to 370 FPS
Trigger: Glock-style Safe Action
Sights: Fixed; white dot front, white U-notch rear
Rail: Integrated Picatinny-style accessory rail
Stock Material: Polymer frame with metal slide
Overall Length: 7.75 in
Barrel Length: 4.49 in
Weight: 1.53 lbs
Color: Matte black
Magazine Capacity: 18-round steel BB, drop-free
Package Includes: Pistol, magazine, instruction manual