The BAD gold TiN bolt carrier group is a workhorse. Featuring an 8620 Bolt Carrier, and 9310 Bolt (MPI), this unit will work through tens of thousands of rounds.
· M16 Bolt Carrier: 8620 Steel, Heat Treated, Machined from Billet, Final Ground Before Titanium Nitride Coating [TiN PVD GOLD]
· Bolt: 9310 Steel, Heat Treated, Shot Peened, MPI, Black Nitride Finished
· Gas Key: 4140 Steel, Properly Staked, Grade 8 Fasteners, Titanium Nitride Coating [TiN PVD GOLD]
· Firing Pin: 8640 Steel, Hard Chromed Plated
· 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
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