JMAC Customs RRD-4C 14F KeyMo Face Mount Muzzle Brake


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

The JMAC Customs Sandman RRD4C is designed to be permanently attached to a 14.5 inch barrel and adapt to the DEAD AIR Sandman suppressors! We recommend this muzzle device be professionally installed on a 14.5″ barrel by a capable gunsmith to ensure proper alignment.

  • 14mm LH threads
  • 2.82″ long
  • Only adds 1.5″
  • Sleeves the barrel 1.32″
  • 17-4ph Stainless
  • 3.6oz

This device is designed to be tightened against the face of the barrel. Your barrel MUST be faced to properly time the Sandman RRD-4C.

***JMac Customs & KNS Precision, Inc. are NOT responsible for an improperly installed muzzle device. Kalashnismith install is highly recommended***

This is a licensed product through Dead Air Silencers.

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