The 556-SD™ is a fast attach silencer for 5.56mm hosts. With a design based on an earlier version of the best selling M4-2000™, the compact and lightweight 556-SD™ offers consumers feature-rich content and excellent value. The 556-SD™ uses the tried and true 51T Ratchet Mount™ fast-attach system that enables users to install or remove the silencer in seconds. The baffle core of the 556-SD™ features 100% Inconel® 718 and full circumferential fusion welding to provide a lifetime of use under the most demanding conditions.
SPECS: Caliber - 5.56mm NATO. Weight - 18oz. Length - 6.7". Diameter - 1.5". Materials - Inconel® 718 and 316L SS. Finish - Cerakote. Attachment - 51T Ratchet Mount. Reduction 31dB (16" barrel).