AR15 .458 Socom Nickel Boron Bolt Carrier Group
R&B ARMS .458 Socom Nickel Boron Bolt Carrier Group is a great choice for any AR-15 build. This drop-in AR-15 BCG features a slick, corrosion resistant nickel boron finish, MIL-SPEC dimensions, and a 9310 steel bolt. The carrier is made from 8620 steel, While the Key is made from 4130 and is properly staked. Nickel Boron offers lubricity, Wear Resistant, Smoother recoil, Improved Consistency, Faster Cyclic Rate, Easier Cleaning, and Reduced Carbon Fouling. Proudly made in the U.S.A. veteran owned and operated businessNickel Boron is the top of the line coating. It is engineered to minimize friction by cutting down the surface to surface contact between sliding parts. Nickel Boron not only reduces friction, but also dissipates heat, allowing for least wear and tear.
We will ensure satisfaction with every AR .458 Socom BGC and make sure its the right fit for your rifle.
*Picture may reflect a different caliberSpecifications:Carrier: Domestic aircraft quality 8620 steel.Gas Key: 4130 steel, Grade 8 gas key screws (properly staked)Bolt:158 Carpenter steelExtractor:4140 steelMil-Spec O-ringMil-Spec Gas Rings (3)Cam Pin: 4140 steelFiring Pin: Hard Chrome, Ground 8740MPI TestedNickel Boron Coating