The CMMG ZEROED 22 Gen2 is a lightweight .22 LR direct thread suppressor built for rimfire shooters who want genuine hearing protection without the bulk. At just 5.6 ounces and 1 inch in diameter, this suppressor threads straight onto any .22 LR firearm with a 1/2"-28 muzzle—no adapters or HUB systems required. Whether you're suppressing a rifle or handgun, the compact profile means many pistols won't need suppressor-height sights, and the minimal weight keeps your firearm balanced and handy in the field or at the range.
What sets the ZEROED 22 apart is how user-friendly it is to maintain. The removable front and rear caps plus accessible baffle stack come apart for thorough cleaning after extended shooting sessions. A 1/4" hex opening on the front cap lets you use a standard allen wrench or hex bit to break it down when carbon fouling builds up—no special tools, no guesswork. Baffle indexing marks help you reassemble it correctly every time, ensuring you get optimal suppression performance. Built tough with 17-4 stainless steel baffles, a 6061-T6 aluminum tube and cap, and a 4140 steel rear mount, the ZEROED 22 is rated for full-auto in .22 LR and semi-auto duty in .17 HMR and .22 Mag.
This is the suppressor for shooters who respect their hearing and their wallet. Rimfire ammo is affordable, and a quiet day at the range or in the field makes all the difference—especially when you're teaching new shooters or hunting in areas where sound matters. The ZEROED 22 delivers that edge without adding complexity or weight you don't need.
Key Features
- Weighs just 5.6 oz—minimal impact on firearm balance and handling
- 1" diameter design eliminates the need for suppressor-height sights on most pistols
- Direct thread attachment (1/2"-28) for quick, tool-free mounting on compatible firearms
- User-serviceable design: removable caps and baffle stack for easy cleaning
- 1/4" hex front cap for simple disassembly without specialized tools
- Baffle indexing marks ensure correct reassembly and consistent sound suppression
- Full-auto rated for .22 LR; semi-auto rated for .17 HMR and .22 Mag
- Premium materials: 17-4 stainless steel baffles, 6061-T6 aluminum tube, 4140 steel rear mount
- Hard coat anodized finish for durability
Specifications
| Caliber | .22 LR (full-auto rated); .17 HMR & .22 Mag (semi-auto only) |
| Muzzle Thread | 1/2" x 28 |
| Attachment Type | Direct Thread |
| Weight | 5.6 oz |
| Length | 5.5" |
| Diameter | 1" |
| Bore Diameter | .224" |
| Finish | Hard Coat Anodized |
| Baffle Material | 17-4 Stainless Steel |
| Tube & Front Cap Material | 6061-T6 Aluminum |
| Rear Mount Material | 4140 Steel |
| HUB Compatible | No |
Frequently Asked Questions
What firearms does the CMMG ZEROED 22 fit?
The ZEROED 22 threads onto any rimfire rifle or pistol with a 1/2"-28 muzzle thread. This is a direct thread suppressor—no HUB system or adapters are included. If your firearm has a different thread pitch or mounting system, you'll need to purchase the appropriate adapter separately. Always confirm your firearm's thread specifications before ordering.
Can I use this suppressor on .17 HMR or .22 Magnum?
Yes, but with an important caveat: the ZEROED 22 is full-auto rated for .22 LR, but semi-auto only for .17 HMR and .22 Magnum. If you plan to shoot those cartridges, your firearm must be semi-automatic.
Do I need suppressor-height sights with the ZEROED 22?
Not usually. The 1" diameter is compact enough that many pistols—especially those with lower sight profiles—won't require suppressor-height sights. However, this depends on your specific firearm, so check your gun's sight height before purchase.
Is the ZEROED 22 easy to clean?
Yes. The removable front and rear caps plus the baffle stack come apart for thorough cleaning without special tools. The 1/4" hex opening on the front cap accepts any standard allen wrench or hex bit. Baffle indexing marks help you reassemble it correctly for consistent performance.

