dsimonlFor sale is an ultra lightweight titanium BCG for the AR15 platform from 2A Armament. This is the titanium RBC in black (now discontinued). I did shoot ~10 rounds through it, and found it performed exactly as described with no further modifications to the rifle. I ultimately sold the rifle, but kept the BCG for a future build that never happened. Description from an online site: The Titanium Regulated Bolt Carrier (RBC) is an ultra-lightweight carrier with a gas regulating gate built into the carrier itself. This provides a drop in, extremely lightweight solution for those looking to tune your AR-15's gas system and minimize felt recoil. It eliminates the need for adjustable gas blocks and allows the firearm to be restored to a factory full weight system by simply swapping your full-mass carrier back into your firearm. The RBC has infinite adjustment from fully open, to fully closed on the regulating gate. The RBC can be tuned to most combinations of buffers, springs, suppressors, and barrel lengths. The RBC Is fully adjustable through the port door and does not require the firearm to be broken down for adjustment. Carrier: Grade 5, 6AL-4V Titanium available in ion bond black, or bead blast matte finishBolt: 9310 steel, heat treated, MP, Cryo'd, QPQ NitrideRear body: 7075-T6, hard anodized clearExtractor: machined, heat treated, QPQ NitrideCarrier key: machined, heat treated, QPQ Nitride, staked screwsRegulating gate: machined from 6AL-4V TitaniumWeight: 5.95 oz fully assembled carrier groupT-6 Torx tool supplied for adjustmentPatent No. 9,857,129Product of the great state of Idaho, MADE IN THE U.S.A. NOTE: - 2A Armament recommends a slightly heavier buffer spring (Sprinco "red" tactical spring) and a lighter weight buffer (mil-spec buffer with weights removed) for best performance when using the AR15 Titanium RBC.- Does not support the use of forward assist. Not compatible with full auto systems
