SKU: MGPMGLK-A14
UPC: 708279014369
The ProMag For Glock 21 .45 ACP 13-Round Black magazine delivers dependable firepower for shooters running full-size .45 ACP platforms. This 13-round magazine is engineered for Glock 21 compatibility and combines precision manufacturing with durable polymer construction to meet the demands of duty, sport shooting, and training scenarios where capacity and reliability matter.
ProMag magazines are manufactured in the USA and backed by a lifetime guarantee against manufacturer defects. The magazine springs are precision wound using heat-treated chrome silicon wire, and every assembly step is checked and double-checked to ensure consistent quality. The 13-round capacity bridges the gap between single-stack carry capacity and higher-round-count options, making it practical for shooters who need both concealability and firepower from their .45 ACP Glock platform. Black polymer construction resists corrosion and provides a clean, professional appearance across duty and recreational applications.
This magazine serves law enforcement officers, armed civilians, and competitive shooters who rely on Glock 21 platforms for self-defense or duty carry. Operators running full-size .45 ACP setups—whether for concealed carry, duty holster, or defensive training—benefit from the additional round capacity and the assurance of American manufacturing and lifetime support. Spare magazines are essential for any serious shooter, and the ProMag 13-rounder offers a proven alternative to factory magazines at competitive pricing.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.