Reviews & Ratings for JMac Customs 4C 14-1LH Slim 4-Port Muzzle Brake

JMac Customs 4C 14-1LH Slim 4-Port Muzzle Brake

List: $89.95 $80.96 Save 10%

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Most Helpful Positive Review Great Muzzle Device for the AK

Easy install for any 14-1LH barrel. Reduces muzzle recoil significantly. JMac Customs makes some of the finest quality items I have ever seen. I recommend this to anyone with an AK style rifle looking for extra performance!

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Jmac 4c slim

by TeeQ, Verified Owner from CA, United States Written on October 21, 2026

Awesome muzzle brake kept the muzzle rise down on a Zastava m90 little to no recoil and the fireballs it produces is crazy 10/10 would recommend!

Pros:

No muzzle rise
Fireballs
Shots on target

Cons:

None

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Amazing muzzle brake

by dyl, Verified Owner from GA, United States Written on July 25, 2026

Reduces recoil significantly, although its loud. Would be weary using it at indoor ranges

Pros:

Recoil Reduction

Cons:

None

Was it helpful to you? Yes | No

M90 with jmac 4 c slim brake

by polo, Verified Owner from CA, United States Written on June 25, 2026

I purchased a zastava M90 while ago. Nice rifle out of the box. I run 200 rounds with the slant brake that it came with. Recently I just looking at optics planet app and this pop up at really good price. Purchased it and took my m90 out to the range. I was hitting steal at 100 yards every single time with iron sights and standing position. Right after my first mag. Other shooter were coming over my table to ask with kind of ak variant wa that. It really was the jmac brake.

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Best Muzzle for AK

by Jay, Verified Owner from CA, United States Written on May 8, 2026

Made my m70 much more fun to shoot, lessens the recoil and sounds like a beast!!

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wasr10 fitment

by krypticace, Verified Owner from FL, United States Written on March 7, 2026

No crush washer or spring washer needed on my wasr 10 it completely sat flush with little to no wobble

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Easy on easy off

by Josh, from GA, United States Written on January 18, 2026

Threads on easy and off easy using the factory detent pin that most AK’s come with. Reduces recoil for the AK well and even better when paired with an enhanced/extra power recoil spring.

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Great addition to my Zpap m70

by J, Verified Owner from PA, United States Written on December 9, 2025

Great muzzle break. There is definitely a noticeable reduction on recoil. Item arrived timely and in promised condition. 10/10 would recommend.

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Jmac muzzle break

by Dave, Verified Owner from OR, United States Written on September 22, 2025

Love it next time I’d order direct instead of a middle man

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awsome muzzle for the price

by dev, Verified Owner from OH, United States Written on April 4, 2025

Works amazing completely eliminates muzzle rise very aggressive on the range

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Great Muzzle Brake!!

by Christian Hill, Verified Owner from SD, United States Written on November 28, 2024

Purchased for my Zastava to have a muzzle device on it as i dont plan on Suppressing it , it helped with recoil to a small extent as you cant expect drastic change from a muzzle device. The quality is also incredibly nice no sharp edges to get cut on and everything lines up , good price as well

Pros:

Quality
Function

Cons:

Loud

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Reviews & Ratings for JMac Customs 4C 14-1LH Slim 4-Port Muzzle Brake — 17 reviews — Page 1