The GLOCK 17 Gen5 MOS CO2 airsoft pistol is a full-size 6mm BB replica designed to mirror the handling and features of the original firearm, powered by a 12g CO2 cartridge and featuring a full blowback system for realistic cycling and consistent performance. It features a 17-round drop-free magazine, a threaded 14mm CCW barrel for muzzle devices, and a velocity of approximately 320 FPS with 0.20g BBs, making it suitable for both indoor and outdoor play. The Modular Optic System (MOS) includes four adapter plates that support common red-dot-sight footprints, allowing users to mount optics directly to the slide. Built with a polymer frame and metal components, the pistol maintains compatibility with many standard GLOCK-style accessories such as holsters and lights, while offering adjustable hop-up for improved accuracy and control.