CHECKMATE-HD™ Suppressor

Now: $459.99
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Due to popularity of our beloved legacy product, the CHECKMATE-QD suppressor, we present to you the CHECKMATE-HD™ suppressor. This new CHECKMATE-HD™ is a 5.8 ounce 5.7x28 pistol rated rimfire suppressor and utilizes our patented ECO-FLOW™ baffle technology as well as our newly developed CARBON-GARD™ technology- the subject of a pending patent. The 5.8 ounce, 5.04" overall length suppressor features a 17- 4 heat treated ECO-FLOW™ baffle system, front cap, and integrated EZ-LOK™ QD mounting system. The tube is 7075-T6 billet machined and hardcoat anodized for maximum strength. The CHECKMATE-HD™ is the new market leader in rimfire suppressors.

The CARBON-GARD™ technology seals the entire baffle core with high temperature Silicone O-rings. This allows the suppressor to be more user maintenance friendly than any other rimfire suppressor on the market. After 2000 rounds are fired, the inside diameter of the tube and outside diameter of the core are still spotlessly clean for ease of disassembly without specialized tools other than a US quarter.

Extensive workup was done to the baffle system resulting in a baffle system with zero first round pop and a market leading sound pressure level (SPL) on rifles and pistols.

The CHECKMATE-HD™ comes with an EZ-LOK™ 1/2x28 barrel adapter and is field ready out of the box. The only supporting accessories outside of various threaded EZ-LOK™ barrel end couplers (barrel adapters), are the CAM-LOK® rear mount (with associated CAM-LOK® barrel adapters in various thread pitch options), and the Direct Thread Adapter 1/2x28, making this suppressor very simple and straightforward for end users to understand and utilize.

Unbeatable sound performance, unparalleled ease of maintenance and servicing, light weight, high strength, historically accurate CHECKMATE-QD mounting, and incredibly competitive pricing are the user benefits of the CHECKMATE-HD™ suppressor.

What's in the box?

Features : 

  • EZ-LOK™ QD mounting interface and adapter included
  • Taper locking QD interface ensures security and accuracy
  • Unique patent pending CARBON-GARD™ tech offers an unbeatable user maintenance experience
  • Premium 17-4 H900 heat treated stainless steel & 7075-T6 outer tube
  • Patented ECO-FLOW™ baffle system for reduced blow back and optimally tuned sound performance 
  • Patented flash reducing tool-less end cap
  • PVD and hardcoat anodize provide increased surface hardness, corrosion, and wear resistance
  • Warrantied for life with Griffin’s Perpetual Lifetime Warranty 

Additional Mounting Options :

CLICK HERE! For Replacement Checkmate-HD™ O-Ring Kit

Caliber & Barrel Length Restrictions :

The CHECKMATE-HD™ is rated up to 5.7x28. It is recommended to let the suppressor cool to ambient temperature after shooting 21 rounds of 5.7x28.

Specs :



Overall Length:


Length Added:



5.8 Ounces


7075-T6 Aluminum & 17-4 Stainless Steel


EZ-LOK™, CAM-LOK™, and Direct Thread

DB Attenuation:

.22lr (115.4dB) Ruger 22/45 Lite .22lr (114.4 dB) S&W M&P 15-22 Sport 16"


PVD & Type III Hardcoat Anodized

Full Auto Rated:

Limited 5.7x28

Additional Details

Attachment System:
User Serviceable?:
.22 (5.56mm)


1 Review

  • 5
    Sounds great and easy to clean for a rimfire suppressor

    Published by F. Daniel on 3rd Dec 2023

    I purchased as an alternative to my DA Mask in hopes of it being easier to clean. Shooting both suppressors on a P322 and I cannot detect any discernible difference in sound. Simply sounds great. The Eco-Flow baffles appeared to work since the Checkmate HD has less smoke/blowback than the Mask.

    On the cleaning front, it was much easier than the Mask. The entire tube, threads, and the exterior of the baffles were spotless. The o-rings do indeed work. One thing to note that after 150 rounds of CCI Clean Subsonic that two or three of the Eco-Flow ports in baffles 1 through 3 had been closed over by carbon. I had to use a dental pick to push the carbon out of the holes. I’d imagine the Eco-Flow properties might lessen with heaving shooting as more baffle ports become closed with carbon buildup.

    I’ll be using my Checkmate as my primary 22 suppressor from now on.

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