8.5" 9MM AR BARREL

These barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. 
Quality is imbued into these barrels from the start. We start with the best materials, either certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges. 
Barrel Material: 4150
Barrel Type: Button Rifled 
Barrel Caliber: 9mm SAMMI 
Barrel Twist: 1:10
Barrel Length: 8.5"
Barrel Profile: Pistol Caliber Taper
Barrel Gas System: N/A - Blowback
Inside Finish: Nitride
Outside Finish: Nitride
Muzzle Thread: 1/2-28 TPI (Threads Per Inch)
Gas Block Diameter: N/A
Gas Port Diameter: N/A
Gas Block Journal Length: N/A
Barrel Extension: Colt & Glock Compatible Feed Ramps
Weight: .81lbs
11-degree Target Crown