The TacFire BU-9MM-10 Pistol Upper Assembly brings a streamlined AR-platform 9mm Luger upper together in a ready-to-install package. Built around a 10" black nitride barrel and a black anodized...

The TacFire BU-300-16 Rifle Upper Assembly in 300 Blackout is a complete AR-platform upper designed for shooters who want a ready-to-run solution. Built around a 16" black nitride barrel with a...

The TacFire BU3005 300 Blackout 5" Black Nitride Barrel Complete Upper Assembly is built around a compact 5 inch barrel chambered in .300 AAC Blackout, delivering a streamlined AR-15 upper that...

The TacFire BU3008 8" 300BO Built Upper W/BCG is a complete AR-15 upper receiver assembly chambered in 300 AAC Blackout. Featuring an 8-inch threaded barrel with an A2-style muzzle device and a...

The TacFire BU30810 10" 308W Built Upper With BCG is a complete upper receiver assembly designed around the .308 Winchester cartridge. Featuring a compact 10-inch barrel and an included bolt carrier...

The 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 is a...

The TacFire BU30818 Rifle Upper Assembly brings a ready-to-run .308 Win AR-platform upper to shooters who want a straightforward upgrade. Built around an 18" black nitride barrel and a 7075-T6...

The TacFire BU45ACP10 45 ACP 10" Black Nitride Barrel Complete Upper Assembly is built for shooters who want a compact pistol-caliber upper with dependable performance. This .45 ACP upper pairs a...

The TacFire BU45ACP4 .45 ACP 4" Complete Upper is a compact pistol-caliber AR-15 upper built around a 4-inch black nitride barrel and slick-side receiver. Designed specifically for .45 ACP, it...

The TacFire BU45ACP7 Pistol Upper Assembly brings .45 ACP performance to the AR platform in a compact, ready-to-run package. Built around a 7" black nitride barrel and a black anodized 7075-T6...

The TacFire BU-556-16 Rifle Upper Assembly brings together a 16" black nitride 5.56x45mm NATO barrel, forged 7075-T6 aluminum receiver, and a sleek M-LOK free float handguard to create a...

The TacFire BU762395 7.62x39mm 5" Black Nitride Barrel Complete Upper Assembly brings the hard-hitting 7.62x39 cartridge to the AR platform in a compact, ready-to-install package. Built around a...