This is a CMMG MK4 / AR-15 25-round .22 LR rimfire magazine.
Compatible with any standard AR-15 lower receiver and converted uppers, the CMMG MK4 / AR15 .22 LR 25-round magazine offers smooth and consistent operation in virtually any target shooting or training application.
Featuring an impact-resistant polymer tube with a shock-resistant floorplate, this CMMG .22 LR AR-15 magazine is built for lasting service shot after shot.
The steel wire spring and hi-vis polymer follower deliver smooth, reliable operation, while the removable floorplate allows for quick maintenance and cleaning when required.
Better yet, this rimfire AR-15 magazine features last round bolt hold-open functionality for improved safety and faster reloads.
Backed by CMMG's legendary lifetime warranty, you’d be hard-pressed to find a better .22 LR AR magazine.
