Premium quality Nickel Boron 5.56 Bolt Carrier Groups
These are the best you'll find on the market and fully polished prior to nickel boron coating.
Features:
- MPI Bolt (magnetic particle inspected)
- Carpenter 158 steel bolt (nickel boron coated)
- Shot peened bolt
- Grade 8 hardened fasteners
- 8620 heat treated carrier, polished w/nickel boron coating
- Key staked per Mil-Spec
- UTC Nickel Boron Coated
- Made in USA
http://www.uctcoatings.com/capabilities/coatings/
Related Products
Also see the 5.56 black nitride BCG and the extended latch charging handle.
