.308 complete fusion bolt carrier group
Bolt carrier is made from 8620 steel and nitride coated inside and out
Bolt is made from 9310 steel, each bolt is shot peened, mpi tested, and nickel boron coated.
Chrome lined gas key staked properly
Chrome plated firing pin
Standard dry film l..
AR-10 .308 Black Nickel Boron BCG - Nickel Boron Coated 9310 steel bolt. NiB Coated 8620 steel carrier features forward assist serrations. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec.
Made for 7.62X51 / 308 CalBlack Ni..
AR-10 .308 Bolt Assembly, Phosphate
Bolt is cnc machined from solid 9310 steel bar stock. Each bolt is shot peened and mpi tested.
Comes assembled with gas rings, ejector and nickel boron coated extractor with the double nested extractor spring.
DPMS platform compatible
.308 Bolt Machined from 9310S7 Tool Steel ExtractorHeavy Duty Extractor Spring and Viton O-RingShot Peened and HPT/MPIBolt, & Extractor coated inside and out with EXO NiBTest Fired before shipping to ensure proper functionMade in USA
AR-10 .308 Nickel Boron Bolt Carrier Assembly is a universal BCG that fits all DPMS 308 upper receivers.Carrier Machined from 8620.308 Bolt Machined from 9310Forged Gas Key Properly StakedS7 Tool Steel ExtractorHeavy Duty Extractor Spring and Viton O-RingGrade 8 hardwareShot Peened BoltHPT/MPI..
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