The CMMG ZEROED 22 suppressor is a user-serviceable .22 LR rimfire can that adds just 5.6 ounces to the muzzle (brand part no. 22CA41E). It is 5.5 inches long with a 1-inch diameter, and CMMG notes that slim body removes the need for suppressor-height sights on many pistols. The baffles are 17-4 stainless steel inside a 6061-T6 aluminum tube and front cap, finished in hard coat anodizing and threaded 1/2-28 for direct attachment. Removable end caps and indexed baffles keep cleanup simple after a long session with dirty rimfire ammunition. It is a good match for a rimfire pistol or rifle that needs a lightweight can for plinking, training and small-game use.

Key Specifications

• The caliber rating is .22 LR, which CMMG lists as full-auto rated for a rimfire can.
• .17 HMR and .22 Mag are listed as semi-auto rated only, so the can covers more than one rimfire cartridge.
• Overall length is 5.5 inches, a manageable size for both pistol and rifle hosts.
• The tube is 1 inch in diameter, slim enough to avoid the suppressor-height sights many pistols would otherwise need.
• The weight is 5.6 ounces, light enough that it does not upset the balance of a handgun.
• The mount is a 1/2-28 direct thread, the pattern found on many .22 LR muzzles and adapters.
• The finish is hard coat anodized, a durable surface that handles daily carry and cleaning.
• Materials are 17-4 stainless steel baffles, a 6061-T6 aluminum tube and front cap, and a 4140 steel rear mount, a mix that keeps weight down while the baffles take the heat.
• A 1/4-inch hex opening in the front cap accepts an Allen wrench or hex bit, so a fouled thread can be broken free for disassembly.
• Bore diameter is .224 caliber, matched to rimfire projectile size.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it’s a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

Is the ZEROED 22 user serviceable? Yes. CMMG builds it with removable end caps and baffles, and the baffles carry indexing marks so they go back together in the right order for optimal suppression.

Can it be used on host firearms other than .22 LR? CMMG lists .22 LR as full-auto rated and .17 HMR and .22 Mag as semi-auto rated only. Confirm your firearm’s thread pitch before ordering, because this suppressor includes only the mounting option listed with it.

Buy the CMMG ZEROED 22 Rimfire Suppressor, .22 LR, Direct Thread

Rimfire shooters often settle for a bulky can, and this one keeps the profile close to the bore line. This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer; ATF approval on most individual eForm 4 filings now comes back in days, and trusts take a little longer. Order through CMMG‘s silencers & suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.