Home / Products / JMac Customs / JMAC CUSTOMS RRD-4C "Slim" 14mmLH Muzzle Brake/Compensator
JMAC CUSTOMS RRD-4C "Slim" 14mmLH Muzzle Brake/Compensator

JMAC CUSTOMS RRD-4C "Slim" 14mmLH Muzzle Brake/Compensator

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$80.99
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Updated
Aug 26, 2026
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Specifications

Description

JMac Customs RRD-4C "Slim" 14mmLH Muzzle Brake/Compensator RRD4-C Slim Threads 14mm x 1 LH Drastically Reduce Recoil Eliminate Muzzle Rise Enhances stability and shot consistency Material: Military Grade 17-4PH Stainless Steel Length: OAL 2.1"(53.4mm), Added length 1.5" (38.1mm) Reduces flash on barrels ​greater than 1​2"​ Weight: 1.8 oz, 51 grams Finish: ​QPQ Matte Black Nitride​ Caliber: 9mm (not for use with .308 or x54r, please purchase the original RRD-4C) Manufactured in the US  ​Counts as 1​, 922r compliance part Since the release of the original RRD-4, ​JMac Customs ha​s 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!​ The new RRD-4C "Slim" 14mmLH muzzle brake compensator is:​ 23% slimmer (.885" vs. 1.150")​, 35% lighter (1.8oz vs. 2.75oz)​ All while retaining all of the positive attributes of its bigger brother: Reduced recoil, reduced muzzle rise, and reduced flash! ​Despite its reduced size and weight it still remains very competitive with other "Big Box" companies while having a more "streamlined" appearance
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