6.5 Grendel 16" Black Nitride M4 Barrel 1:8 Twist Carbine Length Gas System

This nbs AR-15 16" Black Nitride M4 Contour barrel with a 1:8 twist rate and Carbine length gas system. Our 6.5 Grendel black nitride rifle barrels are made from the finest 4150 Chrome Moly Vanadium and precisely rifled for high accuracy at a great price. All finished barrels go through a 100% inspection process. Inspections Equipment includes CMMs and Air Gauges for the bores as well as visual and machine inspection. We recommend Defender 107 gr., Federal Gold Medal Berger 130gr. Specifications: Weight: 3.0 Length: 16" Profile: M4 Contour Twist: 1:8 Finish: Black Nitride Material: 4150 Chrome Moly Vanadium Thread Pitch: 5/8 x 24 Caliber: 6.5 Grendel Type II Feed Ramp: M4 Flutes: None Gas System: Carbine Gas Block System: 0.750 Gas Hole Diameter: 0.070 Classification: Barrels Platform: AR-15