Wilson Combat Barrel Built Kit AR Platform Springfield Armory M1A .375 SOCOM 18 in Hunter - Fluted Mid Length 1-12 Twist Glass Bead TR-375K18F12. 375 SOCOM is a necked-down .458 SOCOM and is capable of pushing a 200-grain bullet at nearly 2400 fps...
Wilson Combat Barrel Built Kit AR Platform Springfield Armory M1A .375 SOCOM 18 in Hunter - Fluted Mid Length 1-12 Twist Glass Bead TR-375K18F12. 375 SOCOM is a necked-down .458 SOCOM and is capable of pushing a 200-grain bullet at nearly 2400 fps...