Nearly two decades of building the finest custom tactical AR-15 rifles have given us the insight to develop a comprehensive line of stainless steel, match grade barrels that offer superior accuracy, reliability and longevity for your next custom AR rifle project.All Wilson Combat Match Grade AR-15 barrels are precisely crafted of the finest made in specialized factories 416R rifle rated steel on computer controlled equipment to our exacting list of technical specifications. These proven barrels feature a hand-polished bore and feedramps and then complete a rigorous final inspection process that ensures your new barrel will meet your most demanding expectations. All barrels feature crisp CNC markings, 1/2 x 28 tpi threads and a chamber and gas port optimized for reliability.Specifications:Color: SilverFabric/Material: Stainless SteelBarrel Material: 416R Stainless SteelGun Make: AR PlatformAdditional Features: .750 inch Diameter by .920 inch Length - Dimpled for Set ScrewGas Block Journal Size-Length: 0.92 in