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Advanced Armament AAC 556-SD Silencer for 5.56 NATO

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. Includes 51T 1/2x28 Blackout® Flash Hider Mount. 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.

*16” AR, Remington 55grn MC

Caliber: 5.56 NATO
Weight: 18 oz
Length: 6.7"
Diameter: 1.50"
Finish: Cerakote™
Sound Reduction: 31dB*
Mount: 51T Ratchet Mount™; 51T 1/2x28 Blackout® Flash Hider Mount included
Materials: Inconel® 718, 316L SS

Must be shipped to class III dealer. Takes 1 to 3 Months to ship depending on ATF.