In stock
JMAC Customs RRD-4C-14F-KM KeyMount Muzzle Device
In stock

JMAC Customs RRD-4C-14F-KM KeyMount Muzzle Device

SKU 5165502086
Brand JMac Customs
Model Number RRD-4C-14F-KM
UPC 5165502086
Customers must read Compliance Information before purchasing.

Product Details


  • Bore: .30 Cal
  • Thread Pitch: 14x1 LH
  • Overall Length: 2.82" (1.5" added length)
  • Material: 17-4ph Stainless
  • Finish: Black Nitride
  • Weight: 2.92 oz


(R)ecoil(R)eduction(D)evice(4) ports(C)ompensator(14)mmLH threads(F)ace(KM) KeyMount by JMAC Customs, or RRD-4C-14F-KM for short is designed to be permanently attached to a 14.5 inch barrel and adapt to KeyMo compatible suppressors! It is recommended that this muzzle device be professionally installed on a 14.5" barrel by a professional gunsmith to ensure alignment

This WILL NOT work on a standard AKM, pistol, or SBR. Barrel must extend at least 1.32” from the gasblock.


  • 14mmLH
  • 82" long
  • Only adds 1.5"
  • Sleeves the barrel 1.32"
  • 17-4ph Stainless
  • 5oz

This device is designed to be tightened against the face of the barrel. You must use our face shims (optional) or your barrel MUST be faced to properly time this muzzle device.


***JMAC Customs is NOT responsible for an improperly installed muzzle device. ***


This is a licensed product through Dead Air Silencers.


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All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.