The Toolcraft DLC coated Bolt Carrier Group was designed with the serious AR enthusiast in mind. The bolt is made of Mil-spec Carpenter 158 steel, shot peened and high pressure tested. Gas key is machined out of bar stock, DLC coated, then secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is coated with DLC (Diamond Like Coated). Made in America with an unconditional lifetime warranty.
Features:
- Milspec Carpenter No. 158 steel bolt
- Shot Peened Bolt
- High pressure tested
- Gas Key Hardened to USGI Specifications
- Gas Key Grade 8 Hardened Fasteners
- Gas Key Staked Per Mil-Spec
- Tool Steel Extractor
- Extractor Spring
- Extractor O-ring Insert