The Griffin Armament Checkmate-HD EZ-LOK suppressor is a black rimfire can rated up to 5.7×28 and set up with Griffin’s EZ-LOK quick-detach mount (Griffin part no. GACMHD22-W). EZ-LOK puts a barrel adapter on each host, so the can moves between a .22 pistol and a rimfire rifle in seconds. Inside the 7075-T6 aluminum tube sits a 17-4 H900 stainless ECO-FLOW baffle stack sealed by CARBON-GARD silicone O-rings, which keep carbon off the tube wall. Griffin says the tube and core stay clean even after 2,000 rounds, and the user can service it. It suits a shooter who wants an easy-to-clean rimfire can that switches hosts.

Key Specifications

• The caliber rating is up to 5.7×28, with .22-250 excluded by Griffin.
• The mount is EZ-LOK quick detach, a taper-locking interface that moves between hosts with matching adapters.
• Length is 5.04 inches, short for a rimfire rifle or pistol.
• Weight is 5.8 ounces, light enough not to unbalance a .22.
• The baffles are 17-4 H900 stainless steel inside a 7075-T6 aluminum tube, hardcoat anodized.
• Diameter is 1.07 inches, slim enough to clear most rimfire sights.
• Griffin lists the suppressor as not full-auto rated and as user serviceable.

Frequently Asked Questions

Why choose the EZ-LOK version? EZ-LOK is a quick-detach mount, so with an adapter on each barrel the same suppressor moves between rimfire hosts. The direct thread version screws onto one barrel instead.

Is it user serviceable? Yes. CARBON-GARD O-rings seal the baffle core, and Griffin says the tube and core stay clean even after 2,000 rounds.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Buy the Griffin Armament Checkmate-HD EZ-LOK Rimfire Suppressor, Black

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Griffin Armament‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.