Superlative Arms Adjustable Gas Block DI Builders Kit .750in Solid Set Screw Melonite QPQ DI Gas Block Carbine Length Melonite Gas Tube Right Hand. The Superlative Arms bolt carrier is compatible with all AR-15 bolts and this kit gives the end-user the...
Superlative Arms Adjustable Gas Block DI Builders Kit .750in Solid Set Screw Melonite QPQ DI Gas Block Carbine Length Melonite Gas Tube Right Hand. The Superlative Arms bolt carrier is compatible with all AR-15 bolts and this kit gives the end-user the...