Caliber: 5.56 NATO
Diameter: 1.625 in (41mm)
Threads: 1/2 in - 28 tpi
Attachment Type: Direct Thread
Material: Inconel 718/Stainless Steel
The SRD556 is an Inconel 718 direct thread suppressor. Inconel 718, a nickel alloy stainless steel, provides the highest level of durability, particularly with short-barreled hosts using supersonic ammunition. The 1/2x28tpi threads match the vast majority of modern rifles in .223/5.56mm on the market today. The rear mount has wrench flats to torque the suppressor to the barrel. These wrench flats can be used as a location to ''pin and weld'' the suppressor to make a shorter barrel over 16'' in total length.