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.
CALIBER: 5.56 NATO
WEIGHT: 11.5 oz (326 g)
DIAMETER: 1.625 in (41 mm)
OVERALL LENGTH: 6.4 in (163 mm)
THREADS: 1/2 in - 28 tpi
ATTACHMENT TYPE: Direct Thread
MATERIAL: Inconel 718 / Stainless Steel