Mean Arms

Mean Arm's Endomag 9mm 30 Round Pmag Conversion Kit Don't have a 9mm AR-15 lower receiver? You don't need one! Convert your Magpul PMAG into a 9mm compatible magazine and pair it with your favorite 9mm AR-15 upper receivers! About this Conversion Kit: This product is a magazine insert that converts your Gen 2 or Gen 3 5.56/.223 PMAG housing into a 9mm magazine to use with a standard AR lower and 9mm upper of your choosing with a Glock or Colt variant 9mm BCG.