Kraken Airsoft takes a look at the Primary Airsoft M4 Mag Adapter for use Hi-Capas and shotguns... "Today we are reviewing an amazing airsoft product from primary airsoft! If you have every wanted a M4 mag adapter for your high capa airsoft pistol or shotgun, but weren't sure if you would like it. Today we answer your questions on the original airsoft m4 mag adapter from primary airsoft. Hope you all enjoy!"