TRYBE Defense Low-Mass AR-15 Complete Bolt Carrier Group High-Polished Nickel Boron (BCG556-LMHPNB)

Low-Mass AR-15 Complete Bolt Carrier Group designed for reduced reciprocating mass and faster cyclic rates. The bolt carrier is CNC-machined from AISI 8620 steel, with lightening cuts to bring carrier weight to approximately 8.8 oz. The bolt is constructed from AISI 9310 steel. Features include MPI, HPT, shot peening, and a QPQ nitride finish for corrosion resistance and low friction. Finishes available include Black Nitride, Nickel Boron (NiB), High-Polished Nickel Boron NiB, Gold Titanium Nitride, and Rainbow PVD. Compatible with AR-15 platforms; forward assist compatible. For use with adjustable gas blocks and tuned buffer weights. Made in the USA. Package contents: TRYBE Defense Low-Mass AR-15 Complete Bolt Carrier Group (BCG).