AAC NSN MARKED M4-2000

The AAC M4-2000 Mod 08 is a battle-tested 5.56mm suppressor with a National Stock Number (NSN) to prove its military pedigree. Featuring AAC’s 51T Ratchet-Mount system, it attaches quickly to compatible BLACKOUT and BRAKEOUT muzzle devices (not included) with rock-solid lockup and minimal POI shift.

Built from fusion-welded aerospace alloys, it’s full-auto rated and optimized for barrels as short as 10 inches. A tapered bore ensures precision alignment, while the internal design reduces back pressure, blowback, and cyclic rate—making it as comfortable to shoot as it is durable.

• Military-Proven Design: NSN-marked suppressor trusted by U.S. forces and elite operators worldwide.
• Quick-Attach Ratchet-Mount System: Fast, repeatable attachment to AAC’s 51T muzzle devices (not included) with minimal POI shift.
• Suppressor-Grade Strength: Full-auto rated with CNC fusion-welded aerospace components for unmatched durability.
• Tuned for Short Barrels: Safe for use on 10” 5.56 NATO barrels without sacrificing longevity or performance.
• Reduced Blowback and Fouling: Advanced internal design lowers back pressure, enhances shooter comfort, and preserves weapon function.
• Precision Bore Alignment: EDM tapered-bore technology ensures excellent accuracy and repeatable performance.

Weight: 18.2 oz.
Diameter: 1.5″
Length: 6.825″ 
Build Material: Inconel 718, 316L SS
Finish: Black Cerakote

• AAC M4-2000
• Owner's Manual

• Add the M4-2000 to your cart. Make sure to include a tax stamp for each item and a Single Shot Trust if applicable. The Single Shot Trust makes it easy to add friends and family as additional users of the suppressor.
• Head to your selected Powered By Silencer Shop dealer with a kiosk to complete your demographic and fingerprint scan in just five minutes. Snap a selfie and upload it online within your customer portal with the Silencer Shop app.
• Silencer Shop will email an electronic document to you. Please review and digitally sign the file from your computer or mobile device.
• Set up your ATF eForms account at eforms.atf.gov. Make sure your email, name, and address match your Silencer Shop profile information exactly.
• You'll receive an email from Silencer Shop that says "Ready to Certify" and includes the phone number of your local Powered by Silencer Shop dealer. Set up a time to certify with your dealer and submit the form to the ATF for processing.