The Glock 21 V MOS is a full-size .45 ACP semi-automatic pistol built around Glock's Safe Action System and designed for dependable defensive, duty, and range use. Its 4.61-inch barrel and Glock Marksman Barrel provide a practical balance of accuracy and manageable recoil. The MOS slide is precision machined for mounting popular miniature red-dot optics with the appropriate adapter plate. Front slide serrations, a reversible magazine catch, an ambidextrous slide stop lever, and the nDLC surface finish add practical handling and durability. The pistol includes three magazines along with an adapter plate, magazine loader, cleaning kit, pistol case, and gun lock.

Key features

• Full-size .45 ACP platform with 13+1 capacity for substantial on-board firepower
• Glock Marksman Barrel supports consistent accuracy
• MOS slide provides a factory-ready mounting system for compatible miniature red-dot optics
• Safe Action System uses three passive, independently operating mechanical safeties
• Front slide serrations support positive slide manipulation
• Reversible magazine catch and ambidextrous slide stop lever accommodate varied hand preferences

The Glock 21 V MOS combines full-size handling, .45 ACP performance, and factory optic readiness in a versatile pistol package.