New from Wise Arms, now coated fully in black Nitride !! Ultra hard and slick finish for long life and ease of cleaning.
MPI tested. This 223/5.56 assembly is made to last and to perform in the worst conditions.
Now available in Black Nitride!
Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This insures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158® steel and shot peened for increased strength per Mil-Spec; includes tool steel extractor with spring and viton O-ring; firing pin chromed finished with firing pin retaining pin and cam pin.
HPT (High Pressure Tested) and MPI (Magnetic Particle Inspected).
Complete Mil-Spec M-16 Bolt Carrier with Bolt Assembly HPT/MPI Tested:
Mil-Spec BCG Machined from 8620 Aircraft Quality Steel and heat treated to 60-61 RC
Mil-Spec Chrome Lined Carrier Interior
Mil- Spec Chrome Lined Gas Key
Key Staked with Grade 8 Screws, per Mil-Spec
Mil-Spec Carpenter 158® Bolt w/ Spring and Ejector
Tool Steel Extractor w/ Spring and viton O-ring
Mil-Spec Firing Pin w/ Chrome Finish
Mil-Spec Cam Pin
Full Auto Carrier (Backward compatible with all semi-auto rifles)
5.56 BCG Weight - 11.55 oz.
is back-ordered. We will ship it separately in 10 to 15 days.