Glock model 21 Pistol
Caliber: .45 ACP (Automatic Colt Pistol).
Magazine Capacity: 13+1 rounds (double-stack magazine).
Action: Striker-Fired (Glock’s proprietary Safe Action® System).
Safety: it utilizes three independent mechanical safeties—trigger safety, firing pin safety, and drop safety.
Frame and Slide Material: Polymer frame with a gas-nitride-treated steel slide.
Sights: U-notch sights.
