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AAC M4-2000



Advanced Armament Corporation has a bevy of top-notch, industry-renowned suppressors on the market. Add their M4-2000 silencer to that list. This impressive unit features AAC’s fast-attach ratchet-mount system, which provides the shooter precision accuracy with minimal and repeatable zero-shift. If looking for an accurate, durable 5.56mm rifle can, this is your huckleberry.

Producing out of awe-inspiring Alabama, AAC designed this suppressor with the goal of creating a reliable, versatile silencer for firearm enthusiasts. Throw in the premium accuracy and convenience offered by the M4-2000, and they hit yet another bullseye in the industry.

Further Intel

Constructed with lightweight and sturdy Inconel, the M4-2000’s extreme durability is heightened by the welding together of the baffles, creating a completely sealed inner core. This also allows for the unit to be full-auto rated on barrels as short as 10” in length. A stainless steel cover encompasses the core, adding strength and stability throughout the silencer. Moreover, its compact size (6.6”) merely adds to the suppressor’s maneuverability. With a sound reduction range of 32–34 dB, the proof is definitely in the pudding with the AAC M4-2000. Getting one for your AR-15 is making more and more sense… Pull the trigger.

*Perk Alert*

Hear ye, hear ye! All M4-2000 silencer purchases now include an AAC 51T Blackout Flash Hider in 1/2x28! At that discounted price, why not grab more for backup? 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: 32–34 dB
  • Length: 6.6”
  • Weight: 17.6 ounces
  • Build materials: stainless steel; Inconel
  • Finish: high-temp Cerakote™
  • Read through the many glowing reviews from customers (Reviews tab)
  • Watch our several helpful video clips for more information (Videos tab)

What’s In the Box?

More Information

View FileM4-2000 Manual    Size: (515.17 KB)

Specification Information

Caliber Rating 5.56mm (.223)
Color Black
Length 6.625"
Length Added 5.1"
Diameter 1.5"
Weight 17.5 oz
Finish High Temperature Cerakoteā„¢
Full-Auto Rated Full-Auto Rated
Manufacturer AAC
Minimum Barrel Length 556 10"
Build Material 316L Stainless Steel, Inconel 718



15 Reviews For AAC M4-2000

  • Hank2/17/2018

    I waited just 1 day shy of a year to get my M4 2000. It was well worth the wait. I'm an old soldier and I wish we would have had these issued to us.

  • Triggerguard11/3/2017

    This is kind of my go-to silencer. It was my first 556 can and it's been kicking around for awhile now without any problems on several guns. The finish is starting to wear off a little but it just makes it look loved.
    I've used it on a variety of barrel lengths from 10.3 up to 16 inches and it maintains good suppression across barrel lengths. POI shifts have always been pretty small with it and I used it on a dmr type setup for awhile. It didn't have much effect on accuracy but I think my best groups were typically un-suppressed.
    I've never had any latch issues or problems with getting it stuck on like some other designs. It does allow a small amount of rotational play when fully installed which might annoy some people.
    I've thought about buying a second one.

  • Timothy8/1/2017

    I have 3 AAC Cans and just took out my M4-2000 for the first time, it performed great on my 12.5 inch 5.56 SBR. I see all these people talking about their can not locking up tight, according to AAC they are supposed to have about half a tooth of play, so the flash hider and Can don't carbon weld to each other, I have had no problems with my 762-SDN-6 and my M4-2000 not locking in the same spot and keeping POI the same every time I take the can off and put back on.

  • jeremy4/30/2017

    I use this M4 2000 on my 12.5" SBR running 77gr ammo. It sounds good even on short barrels like my 12.5. I didn't need ear plugs for two hours i was at the range using 5.56 nato ammo, 77gr and 55gr. I've run the silencer many times on different guns of different lengths. It mounts up solid, fit and finish is real good. I run it with the hybrid break/flash suppressor and flash suppressor only. Both work very well. To me you cant go wrong AAC, i have many silencers and the M4 2000 and specwar556 are my favorite silencers! It was a bit cheaper when i got mine though! Get one you'll love it!

  • Richard12/21/2016

    51t mount is solid and the can itself is well made. Fired one 30 rd mag off the patio when I got it home. Didn't get any comments from the neighbors so the can must work. My son shoots left handed and was whining about blow back but that's to be expected. I may order an adjustable gas block or he might just have to toughen up.

  • Wes4/26/2015

    The M4-2000 is my 1st experience with a suppressor. The suppression is excellent. The push button ratchet is a bit awkward during suppressor removal, but is not a "deal breaker" for a recreational shooter.

  • jwsafranek9/30/2014

    Coating began to come off after the first use and cleaning. Had to send it back to AAC for recoat.

  • Gary Groppe8/25/2014

    Thanks Travis!

  • Travis H8/22/2014

    First can for me. I am happy with this on my LWRC M6A5. First couple of clips I forgot to switch the gas block to suppressed, but it worked fine on either setting. I am extremely pleased with The Silencer Shop. You guys are first class, highly organized, and a pleasure to do business with.

  • Brian Y.8/18/2014

    I had minimal poi shift. It's defiantly hearing safe I shoot it regularly with no ear protection. I have 1500 rds down it functions great. Although if you use the flash hider you do get a tuning fork sound not a problem for me.

  • josh7/29/2014

    I've owned an AAC M4-2000 for many years and am very happy with the unit. I've run it on everything from 10.5" uppers through 20". Full-auto and semi. I also recently put it on a Tavor. Works very well. Extremely durable and good noise suppression. It does cause a lot of blow-back versus other designs but otherwise it is an excellent suppressor. It's handled everything I've thrown at it for 10 years and looks like it will for many more.

  • Chad5/21/2014

    Run this can on my ar15 and my bolt action 5.56. Works great on both. The only issue I have is that it's about 2-3 moa off at 100 yards on my bolt gun. For shoulder shots no problem. On my ar15 with eotech and nightvision it's a great setup. If you want to have a suppressor you can switch on and off guns this one is it.

  • MATTHEW4/24/2014

    The AAC M4-2000 was an easy choice for a multi-platform suppressor in 5.56 caliber. The versatility of the suppressor between countless weapons platforms allows for the user to simiply add an AAC 51 tooth muzzle device to any compatible rifle. This suppressor showed minimal POI shift once attached, and it's ratchet attachment method ensures a secure fit that won't back off under rapid fire use. AAC uses high quality materials and finish that don't deteriorate under high heat from full-auto use, yet it is still relatively lightweight at 17oz. I'm very happy with my M4-2000. From Rem. 700, to 10.5" SBR, to Mk12 SPR, this suppressor gets the job done!

  • Michael H.4/18/2014

    AAC makes an excellent can, great customer service everytime I've called or emailed I've received a quick response. Mounting system is fine and locks up tight or with use it will tighten up. POI shift is minimal, not as good as surefire but it's repeatable. Supresson is excellent for a 5.56. Silencer shop has been great to work with.

  • dclay10004/4/2014

    I have a blackout and use it on several of my rifles. I like the durability and ease of mounting. it does greatly increase back pressure in short barrel rifles. Over all I am very pleased with the design, durability ergonomics, ease of use and would recommend this can to any serious buyer. If you have a adjustable gas system it is even better!!

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AAC M4-2000

SKU: AAC 100398
The worlds most effective 5.56mm silencer just got better.

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