M4-72 Severe-Duty® Compensator

$89.99 - $99.99
(13 reviews)
- Don't see your specific caliber? Check out our Caliber Fit Guide.
- Need a threadlocker for installation? See our Flexbar Rocksett Packs
- Accu-Washer™ Muzzle Alignment System recommended for installation (not included)
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Features an innovative reverse venting triple baffle design for the highest recoil reduction in its class. The M4-72 is an extremely lightweight (2.6 oz) and compact design that delivers industry leading recoil reduction of up to 75%. Closed bottom construction combined with upward biased venting effectively eliminates both muzzle rise and dust signature. Precision machined from heat treated stainless steel for superior durability, the M4-72 can withstand the extreme heat of combat conditions without being subject to rapid erosion. Available with an advanced Ionbond® high temperature CrCN coating (matte black), or stainless steel in-the-white (satin grey).

.223/5.56mm model is designed to fit M4/M16/AR15 style rifles and features 1/2-28 threads. Delivers industry leading recoil reduction of 73-75% for standard 223 Remington. Will accept many devices designed to fit over the standard A2 flash suppressor.

.308/7.62mm model is designed to fit any caliber from .243 Winchester up to and including 338 Lapua Magnum (6.5 Creedmoor, 308Win, 300WM, 30-06, 338LM, etc.) and features 5/8-24 threads. Delivers industry leading recoil reduction of 65-75% depending on the cartridge.

Warning: Reverse venting design may cause excessive blast/concussion on barrels shorter than 14.5" and on bullpup style rifles.

Also available in an AK-47 version with 14x1mm LH threads.


  5.56/.223 7.62/.308
Thread: 1/2x28 5/8x24
Length: 2.250" 2.275"
Diameter: 0.865" 0.985"
Weight: 2.6oz 3.1oz
Full Spec Sheet: View PDF
Installation Manual: View PDF


M4-72 muzzle brake compensator with Accu-Washer Shim

74% recoil reduction 


M4-72 muzzle brake compensator with Accu-Washer Shim

Innovative reverse venting, triple baffle design


M4-72 muzzle brake compensator on SAW

Upward gas biasing to mitigate muzzle rise, as well as a closed bottom to eliminate dust signature


M4-72 muzzle brake compensator with Accu-Washer Shim on AR-15

Will accept many devices designed to fit over the standard A2 flash suppressor.


M4-72 muzzle brake compensator on SAW

Built for Severe-Duty®





When selecting a caliber for one of our muzzle devices, the correct choice is based on your cartridge's actual bullet diameter. For example; if you have a .300 Win Mag, you would select a 7.62/.308 muzzle device. This is because the bullet for that cartridge is a .308" diameter. For a more detailed explanation and examples, check out our Caliber Fit Guide.

You can, we just don't really recommend it. Reverse-venting brakes do just that; vent gases in the reverse direction from where they were traveling. This design is how such high recoil reduction ratings are achieved. But because of that, gases and concussion are directed back to the shooter. Barrels below 14.5" can cause these forces to be quite drastic to some individuals, and more extreme depending on what caliber you are shooting. For a more detailed description, you can read our Muzzle Brake Safety Memo here.




For full specifications, installation manuals, and more - visit our Technical Resources page:



  • 5
    Product Review

    Posted by zacob on 1st Jul 2020

    I had this break installed on a TC venture in 300 win mag. Due to bike crash my neck and shoulder are damaged and even light caliber rifles were painful. My family had this break installed as a Christmas gift a few years back. My 300 in my favorite rifle now. I can sit through a 50 round prone session and that night I don’t even feel I had been shooting. I have shot other rifles with other breaks, none were 300 win mags and none are as soft as mine. Hands down if you want a break to control recoil at a price that doesn’t make you question a suppressor then this is the break for you. Purchased and installed by Liberty Firearms Institute Loveland CO in 2016

  • 5
    Product Review

    Posted by Joelaw on 31st Oct 2018

    I purchased this brake based on all the reviews I found online. I have to agree, this is probably one of the most effective brakes I have ever used. The reduced recoil is great. The blow back towards the shooter was a little weird at first but I have become used to it . Some of the guys I shoot with complain about the noise but it was money well spent! I highly recommend this brake if you are looking at reducing recoil and speeding up your follow up shots.

  • 5
    Product Review

    Posted by Warthog71 on 30th Oct 2018

    If you are considering this brake. Don’t! Just BUY it. IMO there is no better! Sight reaquisition at 100 yards is absolutely no problem. Literally no muzzle rise on my 18” .223 and truly a pleasure to shoot. Just make your neighbors at the range tables aware because it sends quite a shock to both sides. I also purchased the M11 for my 6.5 Creedmoor and the muzzle remains flat. Just a great lateral shock.

  • 5
    Product Review

    Posted by markmypi on 24th Jul 2018

    I purchased this today 07/24/18. I did so because I had purchased one before and absolutely loved the reduced recoil. You’ll be hard pressed to find ANY compensator in the market to match the recoil reduction and quality of the M4-72. It’s simply the best in my opinion. One warning…when they say you may experience severe blowback, Precision Armament is not kidding. This bad boy is loud…really loud. It also sends a flash and blast signature to the sides that goes on for 2 weeks. LOL….But, I still love it. You may not like shooting it at an indoor range, but it’s fantastic.