MEAN Arms EndoMag Ejector 9mm AR-15 Magazine Adapter

Manufactured to ultra-tight specs using a proprietary polymer formula, the MEAN Arms EndoMag Ejector 9mm AR-15 Magazine Adapter safely converts your Gen 2 or Gen 3 Magpul® PMAG® AR-15 magazines into an AR-9 magazine for use with standard AR-15 lower receivers and 9mm blowback uppers. No magwell adapter is needed and no tools are required for installation. The built-in ejector provides reliable and consistent performance under intense conditions, and the last round hold-open feature ensures the bolt locks back on an empty magazine as any AR-platform firearm should. Plus, this adapter isn’t picky and can shoot all kinds of 9mm, including hollow points. Lifetime warranty.