The G21 Gen5 MOS brings the powerful .45 ACP to the Gen5 lineup, offering enhanced accuracy and light recoil, making it an exceptional choice for shooters of all levels. This model also introduces the option to mount an optic, providing added versatility for precision shooting. The G21 Gen5 MOS retains all of the sought-after features of the Gen5 Series, including the advanced Glock nDLC surface finish, which offers unmatched hardness and superior resistance to rust. The high-traction Gen5 frame texture ensures a secure and comfortable grip, while the quick-to-reverse magazine catch and ambidextrous slide stop lever add convenience and adaptability. The Glock Modular Backstrap System (MBS) allows for a customizable fit to suit individual preferences and the renowned Glock Safe Action system provides a reliable and consistent shooting experience with every pull of the trigger. The G21 Gen5 MOS delivers a perfect blend of power, precision and performance, making it the ideal pistol for those seeking a reliable .45 ACP with modern enhancements.

The Glock 21 Gen5 .45 ACP combines precision, power and versatility with a modular back strap, a dual recoil spring and a high-capacity magazine

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

Must be 21 or older to purchase.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).