AR10 308 Premium Nickel Boron Bolt Carrier Group BCG

Complete 308 bolt carrier group assembly.
Plated by UCT/Fail Zero.
The UCT/Fail Zero's plating gives our BCG’s an 80 RC hardness due to their proprietary plating process and higher boron content.
The bolt is machined from 9310 alloy, shoot peened and MPI tested and marked.
The carrier is machined from 8620
Tool Steel extractor.
Fully shrouded firing pin.
Requires very little lubrication and has a very slick surface as well as extended life of the assembly.
Side staked gas key with grade 8 fasteners.

Write a review