The TacFire Barreled Upper (part no. SSBU55616) is chambered in 5.56 NATO with a 16-inch barrel already installed, finished in black nitride for corrosion resistance. TacFire cuts the barrel at a 1:8 twist rate, a middle-ground rate that stabilizes a wide range of common 5.56 bullet weights.

Key Specifications

• Chambered in 5.56 NATO, also safe to run standard .223 Remington ammunition.
• Barrel cut to 16 inches, meeting the federal minimum rifle barrel length.
• Rifled at a 1:8 twist rate, a middle-ground rate that stabilizes a wide range of common 5.56 bullet weights.
• Finished in black nitride, which resists corrosion and cleans up faster than standard phosphate.
• Ships at approximately 5 lb, in line with a complete barreled upper of this length.

Frequently Asked Questions

What twist rate is this barrel? 1:8, a middle-ground rate that stabilizes a wide range of common 5.56 bullet weights.

What finish is on this barrel? Black nitride, which resists corrosion and cleans up faster than phosphate.

Buy the TacFire 5.56 Barreled Upper

Order this 16-inch barreled upper from TacFire. Ships fast from a Lubbock, TX gun shop. Browse our full AR15 uppers selection for more build options.