30SD-K (7.62mm) QD Suppressor

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Griffin Armament's dedication to the never-ending pursuit of providing maximum value to our customers knows no bounds. The development of the newest silencer in the Gate-Lok line is no different! The Griffin Armament 30SD-K was born from multi-level customer feedback that reported the desire for a shorter .30 caliber QD silencer. 

Pursuing maximum performance, the design team incorporated Griffin Armament's patented HEDP™ Baffle technology into the 30SD-K. The 30SD-K offers an incredible 127dB 300BLK subsonic sound signature, 136dB on 5.56mm, and 138dB on .308. The 30SD-K offers users a wide range of platform coverage from 7.62mm, 300BLK, 6.8spc, and 5.56mm using our variety of 30SD and M4SD mounts. 5.56mm firearms are supported with this suppressor via use of any of our M4SD mounts in addition to compatible A2 compensators.

The 30SD-K brings advanced CNC manufacturing, wire EDM, TIG fusion and filler rod welding, together in one full spectrum product.

Unique to Griffin QD family suppressors is it's Gate-Lok mounting interface. The mounting system is one of the fastest on the market and accommodates USGI spec A2 compensators* (in 5.56mm) as well as Griffin's proprietary performance rich muzzle device options.

Additionally the Gate-Lok mounting system does not suffer from the wear prone issues of ratcheting systems common to the marketplace.
Our mounting system was designed to provide trouble free use. 30SD and M4SD mounts in the Gate-Lok family are precision ground to ten thousandths of an inch for minimal, repeatable and completely dependable point of impact shift. Built on years of development, the 30SD-K is the pinnacle of performance- the equal of the best competing products available anywhere in the world.

Rated on Following barrel lengths: No barrel restrictions! While longer barrels promote longer service life, this suppressor has no length restrictions!
*Silencer interface was designed to fit the USGI A2 government contract compliant muzzle devices. We cannot guarantee fitment with an A2 style compensator due to the broad tolerance range of both import and domestic devices from various brands. For guaranteed fitment, we recommend the purchase a Griffin mount.


30SD-K Manual

Diameter: 1.5"
Overall Length: 6.6"
Length Added: x
Weight: 17.8 Ounces
Materials: High strength, high temperature, corrosion resistant 17-4PH Stainless Steel
Attachment: Gate-Lok interface (30SD and M4SD 5.56 mounts)
DB Attenuation:  
Finish: High Temp Cerakote
  • Tig Fusion Welded
  • Flawless Bore
  • Patented HEDP™ Baffle Tech
  • Minimal and Repeatable POI shift
  • Fast Ambidextrous Gate-Lok mount
  • Wear free Gate-Lok interface
  • 30SD and M4SD mount compatible
  • High temp Cerakote finish
  • Included Silencer Pouch
  • Included shim set
  • Multi Caliber Friendly

Additional Details

.30 (7.62mm)
Attachment System:
User Serviceable?:

3 Reviews

  • 4
    Weight and Gate

    Published by Aaron on 20th Apr 2023

    It's a nice can, it's a bit heavy, but that's understandable when you also get a nearly 9mm bore. I love the Gatelok system, however it's practically impossible to unlock when the thing is hot since the spring steel lock is scorching, but those are minor complaints. I'm using mine mainly on my 12.5" PWS long stroke gun and it does it's job more than adequately.

  • 5

    Published by T Baily on 12th Oct 2022

    After a 14 month wait I finally got my 30SD-K and I must say I love it I really like the gate LOK

  • 4

    Published by Ryan on 12th Jun 2021

    After a YEAR of waiting on the ATF, I received my suppressor. I absolutely love it! The only thing I dislike is the spring plate and locking gate. Other than that, I love it!

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