OT Firearms Carpenter 158 Bolt | Phosphate | 5.56 NATO / .223 REM / 300 BLK

Machined from solid bar stock C-158 steel, heat treated, shot peened, precision ground, and nitride treated by H&M, our bolts are the perfect addition to your build.  Whether it's a new build or simply a spare part, you can be sure that your White Label bolt will serve you a lifetime.

AR15 / M16 5.56 Bolt - Complete

• Precision machined to mil-spec dimensions
• Cut from Carpenter 158 steel
• Properly heat treated, shot peened, and precision ground.
• Magnetic particle inspected (MPI)
• Phosphate Finish
• Machined extractor
• Extractor insert and o-ring included
• 5.56 / .223 / .300aac
• 100% USA Made