JMAC CUSTOMS RRD-4C "Slim" 14mmLH Muzzle Brake/Compensator
Lowest Listed Price
$80.99
MSRP
$0
Savings
See retailer
Retailers Reporting In Stock
0 Stores
Updated
Aug 26, 2026
Compare Deals from 1 Retailers
Sorted by lowest price
Specifications
Brand
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 12"
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 has 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
