The TacFire AR-15 Complete Built Upper in 5.56 NATO (TacFire part no. SS-BU-556-10) drops onto a compatible AR-15 lower to complete a build without sourcing and assembling individual upper components. Made by TacFire, this 10.5-inch barreled upper is chambered in .223 Remington/5.56 NATO and cut with a 1:8 twist rate, a versatile rate that stabilizes a wide range of bullet weights for both target work and defensive use. The barrel wears a durable black nitride finish that resists corrosion and wear better than standard phosphate coatings. At roughly 4.1 pounds, it keeps a shorter-barrel build maneuverable.

Key Specifications

• Chambered in .223 Remington/5.56 NATO.
• Barrel length measures 10.5 inches.
• Cut with a 1:8 twist rate.
• Barrel finished in Black Nitride.
• Weighs approximately 4.1 pounds.
• Sold as a complete built upper assembly.

Frequently Asked Questions

What caliber is this upper chambered in? .223 Remington/5.56 NATO.

What is the barrel length? 10.5 inches.

What is the twist rate? 1:8, suited to a wide range of bullet weights.

Buy the TacFire AR-15 Complete Built Upper

Add this upper from our AR15 uppers lineup to finish your next build. Order through our Lubbock, Texas gun shop for fast, insured shipping to your FFL.