NiB-X Nickel Boron Polished Bolt Carrier Group (BCG)

NiB-X Nickel Boron Polished Bolt Carrier Group (BCG)

Titan Ballistics
$140.00
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Description

NiB-X Nickel Boron High Polished 5.56 Bolt Carrier Group (BCG)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 9310 aircraft quality steel with shrouded firing pin. NiB-X M16/AR-15 Full Auto Bolt Carrier Group BCG - POLISHED This coating offers an ultra-hard and low friction surface that provides smooth operation and makes cleaning a breeze. The coating increases hardness, resistance to oxidation, thermal stability and durability. 

· M16 Bolt Carrier: 8620 Steel, Heat Treated, Machined from Billet, Final Ground Before NiB-X Polsihing

 
· Bolt: 9310 Steel, Heat Treated, Shot Peened, MPI, Black Nitride Finished
 
· Gas Key: 4140 Steel, Properly Staked, Grade 8 Fasteners, Black Nitride 
 
· Firing Pin: 8640 Steel
 
· Cam Pin: 4140 Hardened Steel, Heat Treated, Black Nitride Finished
 
· Extractor: 4140 Billet Steel, Manganese Phosphate Finished for Positive Grip, Extractor Insert Included, Viton O-Ring Included