TacFire BU30816 Rifle Upper Assembly 308 Win Caliber with 16" Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group

The TacFire BU30816 Rifle Upper Assembly in .308 Winchester caliber delivers precision and durability for .308 WIN shooters requiring a complete, ready-to-install upper receiver solution. Built around a 16-inch black nitride barrel paired with a 7075-T6 aluminum receiver finished in black anodize, this upper assembly combines corrosion resistance with lightweight strength—critical attributes for both range duty and field deployment.

The black nitride barrel finish provides superior corrosion protection compared to phosphate, making it well-suited for humid or salt-air environments where standard finishes degrade. The 7075-T6 aluminum receiver is a military-grade alloy chosen for its strength-to-weight ratio—substantially harder than civilian-grade 6061 aluminum while maintaining dimensional consistency under sustained fire. Equipped with an M-LOK handguard, the upper assembly integrates with the industry-standard rail system, enabling modular mounting of optics, lights, and tactical accessories without proprietary adapters. The included bolt carrier group arrives assembled, reducing setup time and eliminating compatibility guesswork common when sourcing components separately.

This upper is engineered for AR-platform rifles and serves precision rifle builders, tactical trainers, and .308 Winchester platform users requiring a complete, vetted assembly. The 16-inch barrel balances velocity retention with handling in vehicle, building, or brush environments where longer barrels introduce clearance complications. Shooters upgrading from 5.56 platforms to .308 find the complete upper assembly approach eliminates dimensional mismatches and feed-ramp inconsistencies that sometimes occur with aftermarket combinations.