The GLOCK 20 V MOS pistol is full size for maximum capacity and performance, chambered in 10mm AUTO. The slide is precision machined to provide a mounting system for popular red dot optics. You can quickly and easily mount red dot sights to the slide using adapter plates. The G20 V MOS pistol features the GLOCK Marksman Barrel (GMB), nDLC surface finish, front serrations, an ambidextrous slide stop lever, and more. 

The SAFE ACTION® System is a fully automatic safety system consisting of three passive, independently operating, mechanical safeties. All three safeties disengage sequentially as the trigger is pulled and automatically re-engage when the trigger is released.