AAC 556-SD Fast-Attach 5.56

$649

The 556-SD™ is a fast attach silencer for 5.56mm hosts. More details

Payment Options

Silencer Central has made your silencer purchase even EZer! Simply a 25% down payment with 3 additional payments made every 30 days for the next 90 days. We submit your paperwork to the ATF as soon as your first payment is processed. More details

Norton Guaran­tee
Free NFA Gun Trust
Barrel Thread­ing
Ship To Your Door

Norton Guaran­tee

Buy from Silencer Central and you automatically get the Norton Shopping Guarantee which gives you identity theft protection ($10,000), dispute resolution ($1,000), and a lowest price guarantee ($100). All for free.

Free NFA Gun Trust

  • We offer a free NFA Gun Trust (a $250 value) to all customers which essentially establishes a joint ownership scenario in which you can legally share your silencer with designated others (as well as determining who will inherit your silencer). This lets others use your silencer.
  • We do all the ATF paperwork which helps ensure you completed the gun trust correctly so ATF does not reject. We have completed over 15,000 silencer to gun trust transfers and counting! LEARN MORE

Barrel Thread­ing

In the event you need you rifle barrel threaded to accept your new silencer, we will take care of that as well through our Threading Central. LEARN MORE

Ship To Your Door

Description & specs
How to buy

Product Description

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.

Includes mount. Normally this product is recommended for short barreled rifle application.

*16” AR, Remington 55grn MC

Product Specifications

Length: 6.7"
Diameter: 1-1/2"
Number of Baffles: Fused Baffles
Weight: 18 oz
Material: Inconel 718 & 316L Stainless Steel
Thread Pitch: QD
Brand: Advanced Armament Corp
Self-Service: No
Caliber: 5.56 NATO
Caliber Range: N/A
Color: Black
Finish: Cerakote
Sound Reduction: 31 dB
Mount Style: 51T Ratchet Mount™
Full-Auto Rated: N/A

How to buy a silencer?

1.

Select your silencer

We offer all the best brands and can help you choose the silencer that’s right for you.
2.

We do the paperwork

We will manage the entire buying process for you, let you pay for your silencer in installments, and even set up a free NFA Gun Trust that allows others to use your silencer.
3.

We ship directly to your front door

Once approved, we will ship your new silencer directly to your door.

Compare products

AAC 556-SD Fast-Attach 5.56 AAC 556-SD Fast-Attach 5.56
Banish 223 Banish 223
.223 XDS Coastal Guns .223 XDS Coastal Guns
Length
6.7"
7"
8.5"
Diameter
1-1/2"
1-1/2"
1-1/2"
Number of Baffles
Fused Baffles
7
N/A
Weight
18 oz
9 oz
28 oz
Material
Steel
Titanium
Steel
Thread Pitch
QD
1/2×28
1/2x28
Brand
Advanced Armament Corp
BANISH
Coastal Gun, Inc.
Self-Service
No
Yes
Yes
Caliber
5.56 NATO
.223/5.56
5.56mm
Caliber Range
N/A
Rifles .224 and smaller
N/A
Color
Black
Black
Black
Finish
Cerakote
Gun Kote
Black Matte Parkerized
Sound Reduction
31 dB
38 dB
N/A
Mount Style
51T Ratchet Mount™
1/2×28 (Class A) 0.625″
Direct Thread
Full-Auto Rated
N/A
Limited Full-Auto Rated
N/A
Lifetime Warranty
N/A
Yes
N/A
Product Status
In Stock
In Stock
In Stock