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*WASHINGTON STATE RESIDENTS ONLY* LAST CALL - All MAGAZINES and IN-STORE firearms orders with Magazines over 10 rounds must be place by 11:59pm PST, June 28th, 2022

JMAC Customs RRD-4C 30S KeyMo Shoulder Mount - 5/8x24


Out of stock

JMAC Customs RRD-4C 30S KeyMo Shoulder Mount - 5/8x24





(4) ports


(30) 5/8x24 threads - rated for 30 cal


(KM) KeyMo


The best of both worlds! Their super effective RRD4-4C muzzle brake comp with KEYMO suppressor mount! 



  • Threads: 5/8x24
  • Length: 2.82" long
  • Material: 17-4ph Stainless
  • Weight: 3.84oz
  • This is a licensed product through Dead Air Silencers. 


JMac Customs is NOT responsible for improper installation of this muzzle device or any damage to the suppressor using this device. We recommend this be professionally installed and checked to ensure alignment.

More Information
Product Type Compensator
Manufacturer JMAC Customs
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