The TacFire .308 Win rifle upper assembly (brand part no. BU30820) is chambered in .308 Winchester and completely built around a 20-inch black nitride barrel, ready to mount straight onto a compatible AR-10 pattern lower. The 7075-T6 aluminum receiver is black anodized and paired with an M-LOK handguard for accessory mounting, and unlike a bare barreled upper, this assembly includes a bolt carrier group, so there’s nothing else to source before it’s ready to fire. It ships optic-ready with no fixed sights, giving builders a clean slate for whatever glass they choose to run.

Key Specifications

• Chambered in .308 Winchester.
• Barrel measures 20 inches.
• Barrel finished in black nitride.
• Receiver machined from 7075-T6 aluminum.
• Receiver finished in black anodize.
• Fitted with an M-LOK handguard.
• Ready to mount on a compatible AR-10 pattern lower.
• Ships complete with a bolt carrier group.
• Built optic-ready with no fixed sights.

Frequently Asked Questions

Does this upper include a bolt carrier group? Yes, it ships complete with a BCG.

Does this upper have sights? No, it’s optic-ready with no fixed sights.

Buy the TacFire .308 Win Rifle Upper Assembly

Put together a complete .308 AR-10 build with a ready-to-mount TacFire upper. Order it from our TacFire lineup, part of our AR10 uppers selection, and get it shipped fast from our Lubbock, Texas gun shop.