Mean Arms

Mean Arms ExoMag AR-15 9mm Magazine The MEAN ExoMag is designed to be the most reliable and best feeding 9mm magazine for use with a standard AR lower. The ExoMag has an STANAG magazine outer shape...

Mean Arms ENDOMAG - 9MM We are excited and pleased to introduce the MEAN EndoMag™. This product is a magazine insert that converts your Gen 2 or Gen 3 5.56/.223 PMAG® housing into a 9mm...