30SD Suppressor Mounts

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The Griffin Armament 30SD muzzle devices interface with our 30SD and M4SD series of silencers, as well as the QD Blast Shield.

30SD muzzle devices provide high performance mounting option for Griffin QD Silencers as well as a 30 caliber interface for the QD Blast Shield. The Flash Comp , Flash Suppressor, and Muzzle Brake were made with the same performance features as their 5.56mm counterparts but with a 5/8x24 threaded interface and integral overtravel stops. Pre drilled hole to aid in pinning and welding. The 30SD Muzzle Brake is included with the 30SD silencer. CNC Machined and outside diameter ground from high strength, corrosion and wear resistant, 17-4 precipitation hardened stainless steel, the 30SD muzzle brake is black oxide finished. 5/8x24 threads offer compatibility with most 7.62mm firearms on the market.

Diameter: .863"
OAL: 2.770"Added (2.15")
Weight: 3.2 ounces
Materials: 17-4PH Stainless Steel
Finish: Black Nitride
Attachment: 5/8x24 Thread

  • Ambidextrous QD Mount
  • Free of wear prone geometry
  • Functionally engineered for maximum performance
  • Sacrificial baffle to extend the life of your suppressor (excludes Flash Supp.)
  • 17-4 PH Stainless steel to withstand hard use
  • Griffin Laser Logo Marked
  • 5/8x24 industry standard Thread Pitch for most 7.62mm firearms
  • Shim set Included
  • Integral Over-Travel stop
  • Compatible with 30SD, M4SD series silencers, and QD Blast Shield

Additional Details

7.62mm (.30)
Thread Pitch:
Attachment System:
Type Of Part:
Muzzle Device

7 Reviews

  • 5
    30 SD mount

    Published by Steven Pinson on 25th Jul 2020

    None better out there, especially for the SD 30 suppressor.

  • 5
    30SD Muzzle Brake

    Published by Mark on 2nd Dec 2019

    Fine Craftsmanship/ includes shims
    Great product

  • 5
    flash comp

    Published by lee maxey on 5th Feb 2019

    Excellent I have one for my 5.56 and I'm planning to purchase a suppressor from you.

  • 5

    Published by Mike on 20th Nov 2018

    This is hands down my favorite muzzle device! Griffin has excellent muzzle devices. They have a super tough nitrde finish on them that holds up extremely well to heavy wire wheel cleaning after running a silencer on them. I wish they made a 30 cal hammer comp.

  • 5

    Published by Kilroy was here on 15th Sep 2018

    Already running 2 Griffins brakes in 5.56 which I have been very pleased with. Building a 30 cal that’0Is getting a Griffin can in near future so need brake compatibility in both calibers.

  • 5
    Well made product.

    Published by Craig Smith on 10th Sep 2018

    My 30SD finally got out of ATF jail after waiting a year and a half. I wanted an extra mount for future applications before the model became obsolete. Very well made, and the included shim make timing very easy.

  • 5
    High Quality

    Published by Unknown on 19th Aug 2018

    Very high quality and extremely well engineered. Easy to install. Times up well and Performs better than expected.

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