Disclaimer: This barrel is only reliable with 5.56 NATO ammo. Do "NOT" use 223 Wylde, It will result in under gassing and reliability issues. Features:Manufacture: Bear Creek Arsenal CNC Precision Machined 4150 Heat Treated SteelDurable Black Nitride FinishGas System: Carbine5.56 NAT..
Features:Manufacture: Bear Creek ArsenalFinish: ParkerizedTwist: 1/10Gas Block Diameter: .750"Carbine Length with a gas hole diameter of 0.1025/8"x24 Thread PitchMaterial: 4140 Gun Quality Steel, Heat Treated to RC 28-32 Hardness, Stress RelievedMade in the USA..
.750" gas block diameter
Carbine length with a 0.07 gas hole diameter
1/2"x28 Thread Pitch
4150 Heat Treated Chrome Moly Steel
Black Nitride finish
Made in USA..
Features:Length: 16"5.56 NATO1:9 Twist.750" gas block diameterCarbine gas system with a 0.07 gas hole diameterM4 Profile1/2"x28 Thread Pitch416R Stainless SteelBlack Nitride FinishMade in the U.S.A.Fits: AR-15..