Out of stock
SKU: MGCMMG54AFC-P
The CMMG Mk4/AR15 5.7x28mm magazine is a purpose-built feed system designed to convert standard AR15 lower receivers into the 5.7x28 cartridge platform. This magazine is specifically designed for use with CMMG's 5.7x28 Radial Delayed Blowback uppers and Mil-Spec AR15 lower receivers, ensuring reliable performance in a modular AR configuration.
The redesigned magazine features upgraded feed lips that are engineered for reliable chambering and extraction across the velocity envelope of 5.7x28 ammunition. Weighing 0.38 lbs per unit, it maintains a compact profile suitable for tactical environments where ammunition count and weapon balance are crucial. The stylized texture grip on the magazine body enhances control and facilitates rapid magazine changes under stress.
This magazine serves operators, competitive shooters, and AR platform enthusiasts who have invested in CMMG 5.7x28 conversion uppers. The 5.7x28 cartridge provides intermediate ballistics between 9mm and 5.56, making it effective for intermediate-range precision shooting and training scenarios. Compatibility is restricted to CMMG's proprietary 5.7 uppers and standard AR15 lower receivers, with a capacity of either 10 or 32 rounds.
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.
