Toolcraft BCG DLC (Diamond-Like Coating) AR15 / M16 Auto Bolt Carrier Group C158 MPI Tested
These are 100% brand new, fully functional Toolcraft DLC (Diamond-Like Coating) BCGs with a minor cosmetic blem. The blemish does not effect function or performance whatsoever, and the BCG is still covered by Toolcraft’s lifetime warranty. Blemishes vary by type and location but may be a blemish in the carrier itself or may be a minor cosmetic blemish in the finish.
All manufacturing and coating is done by Toolcraft
100% Made in USA and includes Lifetime Warranty from Toolcraft. If you ever have a problem, simply call Toolcraft and they will take excellent care of you with their no questions asked Lifetime Warranty.
Bolt: Carpenter 158 steel (C158)
Extractor: Shot Peened Hardened D2 tool steel
Gas rings (3): Mil-Spec
Heavy Duty M16 design
Grade 8 Gas Key Screws, Staked
Gas Key Material: 4140
mil-spec firing pin made from centerless ground 8740 steel, hard chrome coated