GLOCK G17 Gen 5 MOS CO2

The Umarex GLOCK 17 Gen5 MOS CO2 is an airsoft pistol built on the distinctive full-size G17 Gen5 format, combining a metal slide, CO2 power, a blowback system, and an integrated MOS Modular Optic System for mounting compatible red dot sights.

With every shot, the blowback system cycles the metal slide, delivering dynamic operation and enhanced shooting feedback. The pistol is powered by a 12g CO2 capsule housed inside the magazine.

MOS 1 Red Dot Sight Interface

The slide features an integrated MOS 1 interface, allowing various red dot sights to be mounted using the appropriate adapter plate for the optic’s footprint.

A compatible red dot sight enables faster target acquisition while staying mounted directly on the slide. When no optic is installed, the MOS mounting area stays protected by the standard cover plate.

CO2 Operation and 14-Round Magazine

This pistol uses a 14-round CO2 magazine for 6mm BBs, powered by a single 12g CO2 capsule that drives both firing and the metal slide blowback system. 

Safety Systems and Weaver Rail

The GLOCK 17 Gen5 MOS includes an automatic trigger safety alongside an additional sliding manual safety, giving this CO2 version two layers of safety. A Weaver accessory rail is integrated into the dust cover beneath the front of the frame, allowing compatible accessories such as tactical lights or other rail-mounted gear to be fitted.

Key Features

• Metal blowback slide: Realistic cycling action with every shot
• CO2 powered: Driven by a single 12g CO2 capsule
• MOS 1 optic interface: Mount red dots via Docter, Trijicon, C-More, or Leupold footprint adapters (sold separately)
• Dual safety systems: Automatic trigger safety plus manual sliding safety
• Weaver rail: Integrated into the frame’s dust cover for accessory mounting
• Spare magazine available: Additional CO2 mag sold separately