Chills1994 created a topic in Pistol Caliber Carbine
July 11, 2018
Have you seen the MEAN Arms Endomag yet?
It fits in a normal 30 round Gen 2 or Gen 3, 30 round Pmag: So no need for a mag block or a dedicated 9mm AR lower. Supposedly, they will be on sale later this summer...buy 3 for like $64 or $69 .