CMMG MK4/AR15 Magazine 5.7X28MM 10-Rounds

Overview

CMMG MK4/AR15 Magazine Features The CMMG MK4/AR-15 5.7x28mm 10-Round Magazine is a performance-enhanced 5.7x28mm centerfire magazine designed to deliver improved field service and dependable operation in any environment. Compatible with any Mil-Spec AR-15 lower receiver and MK4 Radial Delayed Blowback upper receiver these CMMG conversion magazines safely feed 5.7x28mm ammunition for reliable operation in any tactical or target shooting environment. Constructed of durable high-impact polymer with upgraded feed lips enhanced texturing and engraved caliber notations this centerfire rifle magazine features a last round bolt hold-open functionality for clear indication of an empty magazine and faster reloads while on the move. CMMG MK4/AR15 Magazine Specifications Compatible: Any standard AR-15 lower receiver Caliber: 5.7 x 28mm Capacity: 10-Round