The Sanders Armory Corp 7.62 x 39 Melonite/Nitride BCG offer a 9310 Steel MPI Tested bolt and a 8620 Steel Carrier with a Nitride finish that will not flake off, and produces less friction while increasing the life of the BCG. The bolt carrier groups are processed with the QPQ (quench polish quench), a specialized type of nitrocarburizing case hardening which increases corrosion resistance while adding natural lubricity and reduced wear.
The 7.62 x 39 Melonite/Nitride BCG Features:
- 9310 Steel MPI tested bolt and 8620 Steel Carrier.
- Corrosion resistance inside and out.
- Requires light lubrication for maximum efficiency, easy to clean.
- Includes crane o-ring for reliable extracting.
NO shipping to District of Columbia (Washington, D.C.); Massachusetts; Connecticut; Chicago, Cook County, Deerfield, Highland Park or Aurora Illinois; New Jersey; New York; Puerto Rico; Hawaii; or Canada. NO international shipping, all must be within the 48 Contiguous United States. NO APO/PPO/FPO’s.