This is the CMMG AR-15 9mm 30-round magazine. This magazine is designed to only work with the CMMG-specific 9mm AR conversion kit.

This magazine is a Magpul PMAG GEN 2 AR-15 magazine converted by CMMG to hold 9mm rounds.

Putting this magazine alone in your gun does not convert it to a 9mm. You must have the specific CMMG conversion upper.

CMMG’s 9 AR Conversion Magazines make it possible to shoot 9mm ammunition from your unmodified AR15 lower receiver when paired with a CMMG 9mm Radial Delayed Blowback upper.

CMMG’s 9 AR Conversion Magazine is a modified PMAG that seats into your AR15 mag-well and holds up to 30 rounds of 9mm ammunition. Its unique design allows it to feed any CMMG 9mm Radial Delayed Blowback upper receiver while maintaining last round bolt hold-open functionality.