JMac - MDi-co

RRD-2C 30S X12 45 Cal

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Current Stock:
2.50 Ounces
Shim Kit
Add a Blast Shield
Pin for Pin/Weld

The X Series muzzle brake and suppressor adapter remains installed on your firearm and allows direct threading of several suppressors! Its lighter, Shorter, Simpler and Less expensive than most QD systems on the market while maintaining all the positive attributes of a direct thread mount! There are no adapters involved the suppressor threads DIRECTLY onto the mount!

  • 5/8-24 Barrel Threads
  • 45 Cal Bore (no caliber restrictions as long as they are smaller than bore)
  • 1.125-28 External Threads
  • 17-4ph Stainless
  • Black Nitride
  • Requires shims to time
  • Compatible with BDS-12 Blast Diversion Shield (and suppressors listed below)

Check out our Blog Post!

RRD-2C X compatibility  - X12 1 1/8” 28 (1.125-28)


  • Octane 9
  • Octane 45
  • Octane 45K
  • Harvester 30
  • Omega 9K
  • Omega 45K

Rugged Suppressors

  • Obsidian 9
  • Obsidian 45

Griffin Armament 

  • Revolution 9
  • Revolution 45
  • Optimus
  • Resistance 9
  • Resistance 45

JMac Customs recommends that all suppressor mounts be installed and checked for alignment by a professional. Serious damage could result to your suppressor/firearm and physical harm is possible if installed/used incorrectly. All suppressor mounts MUST be tight against the shoulder or face of the barrel using shims or face milling method. Contact us if you have any questions or need a recommendation for professional installation. JMac Customs LLC is not liable for injury, damage, or death related to the usage of this product.

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