Advanced Armament Corporation’s 556-SD can is a fast-attach silencer for your 5.56mm host. A retooled unit based on its renowned AAC M4-2000 brethren, the compact (6.7”) and lightweight (18 ounces) 556-SD offers suppressor enthusiasts a versatile,

feature-rich option. This suppressor employs AAC’s innovative 51T Ratchet Mount fast-attach system, enabling shooters to easily add/remove the can from the gun. (Which, in turn, results in more time destroying targets!) Regarding durability, the 556-SD sports a baffle core constructed of strong Inconel 718, along with a stainless steel body. We triple-dog dare you to push this silencer to the limit.

AAC, located in alluring Alabama, designs industry-leading firearms, suppressors, and accessories. With the inception of their full-auto rated 556-SD, the head of the class will not relinquish their position anytime soon.

*Perk Alert*

Hear ye, hear ye! All 556-SD silencer purchases now include an AAC 51T Blackout Flash Hider in 1/2x28! At this price, why not grab a couple more for those other AR's that your spouse doesn't know about? Or, check out the other available state-of-the-art options: AAC 51T Muzzle Brake and AAC 51T Brakeout Combo.

Rapid Fire

• Full-auto rated!
• Sound reduction: 34 dB
• Build materials: stainless steel, Inconel 718
• Finish: high-temp Cerakote™
• Watch our performance testing and instructional videos for more intel (Videos tab)

What’s In the Box?

• AAC 51T Blackout Flash Hider (Free!)
• Black nylon utility pouch with closure and belt loop hitch for personal transport
• User manual