Rubber City Armory Low Mass Competition AR-15 BCG

Overview

The Rubber City Armory Low Mass Competition AR-15 BCG is a lightweight bolt carrier group designed for competitive shooters seeking reduced felt recoil, minimized weapon movement, and faster follow-up shots. Weighing 9.1 ounces, the assembly is compatible with all AR-15 platforms chambered in 5.56 NATO, .223 Rem, and 300 AAC Blackout. The low-mass carrier is constructed from 8620 steel and paired with a precision-machined 9310 steel bolt. All components feature an enhanced heat-treated Blacknitride+ finish inside and out, treated with a synthetic fluoropolymer of tetrafluoroethylene to reduce friction, minimize wear, and eliminate the need for excessive oil or grease. The gas key is properly staked, and the complete assembly includes the low-mass steel bolt carrier, steel bolt assembly, extractor, cam pin, carrier gas key, firing pin, and firing pin retaining pin.

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