Does CMMG have 9mm magazine inserts?

CMMG no longer offers 9mm magazine inserts, specifically the ENDOMag insert. If you're looking to convert your standard AR15 to run 9mm, CMMG offers a 9 AR Conversion magazine developed in collaboration with Mean Arms. This magazine allows a standard M16/M4/AR15 lower to use 9x19mm Luger ammunition when paired with a CMMG 9mm Radial Delayed Blowback upper group. The conversion magazine utilizes a MagPul PMAG® 30/AR/M4 GEN M2 MOE® magazine body and is designed for compatibility with any standard AR15 lower receiver.

Please note, the lower receiver should use a standard carbine buffer and action spring for reliable functioning. This setup is not a .223/5.56 to 9mm conversion kit, but rather enables you to use a dedicated 9mm upper group on your AR15 lower.