JMac - MDi-co

4C 24-1.5

(8 Reviews)
Current Stock:
3.20 Ounces
14mmLH-24mmRH Thread Adapter
Out of stock




(4) ports


(24)mmRH threads

The new RRD-4C muzzle brake/compensator!

The RRD-4C is a lightweight Muzzle Brake Compensator that not only reduces recoil by 20% and virtually eliminates muzzle rise but also REDUCES FLASH*! This one of a kind combination device gives you control over your firearm like you've never had before while only adding 1.5" in length and 3 oz in weight! 

Product Specs;

  • 24-1.5RH Threads
  • Material: Military Grade 17-4PH Stainless Steel
  • Length: OAL 2.5"(63.5mm), Added length 1.5" (38.1mm)
  • Weight: 3.10 oz
  • Finish: Matte Black Nitride
  • Caliber: 10mm bore will work with 5.56, 5.45, 7.62x39, 762 nato, 7.62x54r and 9mm!
  • Manufactured in the US and counts as 1 922r compliance part


  • Arsenal 104/106/107 F/FR/CR/UR, SAM7SF
  • Bulgarian, Russian AK-103, AK-74M, AK-100, AK-74 and AKS-74
  • Bulgarian and Russian AKS-74U, AKMSU
  • Bulgarian AK-102/104/105 clones
  • Custom builds with 24mm threaded front sight blocks
  • Will thread on Russian AK-102/104/105 clones but WILL NOT detent properly (does not effect function)
  • Will thread on PSA firearms with FSGB combo but WILL NOT detent properly (does not effect function)

Since the release of the original RRD-4, we have been tweaking the design to improve muzzle control and reduce weight. The RRD-4C has cut-outs on the top sides to allow gas to vent upwards in turn forcing the barrel downwards and virtually eliminating muzzle rise with an extremely low flash signature! 

Additional Pictures can be found HERE

* Reduces flash on barrels 11" and longer

See how the RRD-4C compares to 28 other popular AK muzzle devices in Flash Reduction!

AK Operators Union Video

Reviews (8)


Written by Jeremy Weeks on May 14th 2022

Hands down the best Muzzle break I’ve ever owned for my AK-103. 10/10 will buy this again.

Jmac rrd 4c

Written by Joe on Jan 2nd 2022

Reduces recoil drastically and muzzle rise is gone . Shoots softer and flatter than a AR 15 . Mine is installed a a psa akp . Totally changed the gun . Worth every penny , quality of product is top notch . 5 stars

RRD 4C 24

Written by Garrett on Dec 3rd 2021

Holy cow, what a game changer. It looks sweet, and handles like a dream. My KR-103 is now much smoother because of JMac C. Worth it, hands down.


Written by KC COX on Nov 27th 2021

Was really impressed with the first one so I had to order a 2nd one for my 2nd SAM. Mitigates recoil like a champ. Honestly thought this comp would be a flame thrower but the flash suppression is superb. Jmac is top notch.


Written by Jake on Aug 20th 2021

looks stylish and works great. 10/10

Order #9400136205309134352367

Written by Harut on Jul 15th 2021

I recovered my package, I love it thank you.

Great Product!

Written by Chase R. on Dec 31st 2020

I replaced a 4pc flash hider on my SLR106 with this JMAC brake and just WOW! The recoil is basically non existent now and the rifle is extremely stable while firing. On top of that, the fit & finish is top notch and the brake has flash hiding capabilities. I 100% recommend this product and wish I would’ve purchased it sooner. Great job on this one JMAC!

Amazing Quality

Written by Michael T Cook on Oct 28th 2020

Great fit and finish, looks amazing on my Arsenal SAM7SF. Installing it was no issue.

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