The TacFire .308 Win rifle upper assembly (brand part no. BU30818) is chambered in .308 Winchester and completely built around an 18-inch black nitride barrel, a more maneuverable option than TacFire’s 20-inch upper while still delivering solid .308 velocity. The 7075-T6 aluminum receiver is black anodized and paired with an M-LOK handguard, and the assembly ships complete with a bolt carrier group, so it’s ready to mount straight onto a compatible AR-10 pattern lower. It’s built optic-ready with no fixed sights, giving builders a clean slate for their glass of choice.

Key Specifications

• Chambered in .308 Winchester.
• Barrel measures 18 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.

Frequently Asked Questions

How does the 18-inch upper compare to the 20-inch? It’s a more maneuverable length while still delivering solid .308 velocity.

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

Buy the TacFire .308 Win Rifle Upper Assembly

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