CMMG’s 5.7 AR Conversion Magazine, factory blocked to hold 10 rounds of 5.7x28mm and fits in any standard AR15 lower receiver. To use, simply attach a CMMG 5.7x28mm Radial Delayed Blowback complete upper receiver to an existing AR15 lower. Then, insert CMMG’s 5.7 AR Conversion Magazine to safely feed 5.7x28mm ammunition. CMMG recommends using a standard carbine buffer and action spring to reliably cycle the action in this configuration. The 5.7 AR Conversion Magazine also retains last round bolt hold-open functionality, allowing for faster reloads.

TECH SPECS:
CALIBER: 5.7x28mm
CAPACITY: 10 rounds

Cmmg 5.7 Conversion Magazine, 5.7x28mm, Black, 10rd, 3-pack, For Use With Cmmg 5.7x28 Conversion For Ar Platform 54affc8

Model: 5.7 Conversion
Product Type: Magazine
Finish/Color: Black
Fit: AR Rifles
Caliber: 5.7X28MM