Glock PA215S201MOS G21 Gen5 MOS Standard 45 ACP 10+1 4.61 in Black GMB Barrel, Black nDLC Serrated Slide, Black Polymer Frame w/Picatinny Rail, Black Textured w/Interchangeable Backstrap Grip, Pistol

Overview

The Glock 21 Gen5 MOS in .45 ACP is a standard-size handgun that combines improved accuracy, light recoil, and factory optic-mounting capabilities. Its precision-machined MOS slide features a black nDLC finish and front serrations, paired with a 4.61-inch Glock Marksman Barrel (GMB) utilizing aggressive polygonal rifling, a target-style crown, and tighter chamber specifications. The black polymer frame includes a Picatinny rail, a flared mag-well with a larger funnel for easier reloading, and a modular grip system with interchangeable backstraps in two sizes featuring beavertails to customize the circumference for individual hand size. Built on Glock's Safe Action System with integrated trigger, firing pin, and drop safeties, the G21 Gen5 MOS also features ambidextrous slide stop levers for improved ergonomics. It has an overall length of 8.07 inches, a height of 5.51 inches, and a width of 1.38 inches, with a trigger pull weight of 5.50 lbs. This model has a 10-round capacity and ships with an adapter plate, three magazines, a magazine loader, a cleaning kit, a pistol case, and a gun lock.

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