The SOLGW V2 profile was designed with our customers’ needs in mind, delivering increased accuracy while balancing suppressed handling and performance. With the significantly increased chamber support, our V2 contour barrels are better suited for modern configurations where lights, lasers and suppressors all add to a commonly muzzle heavy carbine. The transfer of material to the rear of the barrel helps to offset the weight of accessories, and stiffens the barrel at the same time - reducing POI shifts between suppressed and unsuppressed use. The gas journal length has been shortened as well to optimize weight distribution, so please note that fixed front sight bases will not fit on this barrel, only low profile gas blocks. Our V2 barrels remain appropriately gassed for use with or without a suppressor of your choosing Specifications for Sons of Liberty Gun Works 5.56mm Combat V2 Threaded Barrel: Manufacturer: Sons of Liberty Gun Works Color: Black Finish: QPQ Caliber: 5.56x45mm NATO Barrel Profile: V2 Threads per Inch: 1/2x28 Gun Make: AR Platform Gun Model: AR-15 Package Contents: Sons of Liberty Gun Works 5.56mm Combat V2 Threaded Barrel This product is compatible with the following gun models: AR-15