This 5.56/.223/.300BLK BCG is machined from 8620 Heat Treated Steel Alloy and Black Nitride (QPQ) coated while the bolt is machined from 9310 Heat Treated Steel Alloy then Shot Peened to increase resistance to micro surface cracking. The bolt is Black Nitride coated and is MPI tested.
SFP Tactical is now offering their Black Nitride Complete FA Bolt Carrier Group (BCG) as a Pre-Sale.
The extractor is Nitride coated and has a Crane O-Ring for increased extraction reliability and the Gas Key is secured with Grade-8 hardware and side staked.
The BCG is being offered for $119.95 and is available for pre-sale at: