One m16 DLC bolt carrier group. these were made for another company with logo, but the old logo has been lasered over.
- 9310 steel
- MPI Bolt (Magnetic Particle Inspected)
- Shot Peened Bolt
- DLC coated bolt
- DLC coated Carrier (AUTO)
- DLC coated Gas Key
- Gas Key Hardened to USGI Specifications
- Grade 8 Hardened Fasteners , Key Staked Per Mil-Spec
- Tool Steel Extractor
- Extractor Spring
- Black Extractor Insert
- Mil-Spec O-Ring
https://en.wikipedia.org/wiki/Diamond-like_carbon