Griffin Armament MRE Maratime Reciever Ext. AR15 GAMRE. A six position mil-spec dimensioned receiver extension featuring 7 ports to allow excess gas water oil and debris to leave the operating system reducing pressure and associated danger to both...
Griffin Armament MRE Maratime Reciever Ext. AR15 GAMRE. A six position mil-spec dimensioned receiver extension featuring 7 ports to allow excess gas water oil and debris to leave the operating system reducing pressure and associated danger to both...