Blemished Complete Nickel Boron BCG
These are being sold as blemished due to some inconsistencies in the base metal. Will not affect functionality.
M16 Bolt Carrier Group comes with a Nickel Boron carrier and a Black Nitrided Bolt Assembly. We source our components from manufacturers that meet or exceed Military Specifications. All parts are machined and properly heat treated to Mil-Spec followed by a Nickel Boron coating with UCT's Exclusive EXO Technology.
Coated Inside & Out With UCT EXO NiB
Enhanced 9310 Steel
8620 Tool Steel (Carrier)
Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
Tool Steel Extractor
Shrouded Firing Pin
Mil-Spec Gas Key (4130 Steel) attached with Grade 8 hardware and Properly staked
Bolt is shot Peened and MPI
Product Code: NIBBCG-FAC-SBN