Lantac E BCG Gen2 DI Side Charger 223 5.56 NiB UCT Exo Carrier La-n15

The Lantac E-BCG Gen2 DI Side Charger Enhanced Bolt Carrier Group for .223/5.56 Caliber is precision machined to deliver a smoother, cooler, and cleaner operation when used with a side charging upper receiver. Designed to be paired with Lantac's LA-N15 Raven Side Charging Billet Upper Receiver for guaranteed fit, this M16 Full Auto Style carrier features a 8620 steel carrier, a shot peened Carpenter 158 or 9310 bolt, and a hardened, ground, and machined finish that ensures exceptional wear resistance. Encapsulated in the patented NiB UCT EXO coating, the surface offers extreme lubricity with a friction coefficient of .02 and a hardness of 82-85 Rockwell C, while the CP-R360 domed head cam pin improves ultra-smooth engagement and reduces wear. Notable design elements include forward-facing, re-sized gas ports for a flatter system and a reconfigured gas venting pattern that helps minimize upper receiver pressurization, especially when running a suppressed barrel, though no single solution is guaranteed for all rifles. The flared tail boss enhances lock position for repeatable accuracy, and all critical dimensions are hard turned after heat treat with four-point gas key staking and Grade 8 fasteners. Weighing 11.7 oz (excluding handle) and featuring fully hardened chrome surfaces to MIL-STD, this USA-made E-BCG delivers reliable performance and durability.