CMMG ZEROED 22 Suppressor Review: A Lightweight, Easy‑Clean .22 LR Can
The CMMG ZEROED 22 is a rimfire suppressor built for .22 LR with a focus on what most rimfire shooters actually need: low weight, simple direct-thread mounting, and true user serviceability for cleaning. Rimfire cans get filthy fast, so the ability to pull the baffle stack and scrub everything matters more here than on most centerfire suppressors.
This post walks through the ZEROED 22’s key specs, what makes it attractive in the current rimfire suppressor market, and who should (and shouldn’t) buy it.
Note: Always follow federal, state, and local laws. Suppressors are NFA-regulated items in the U.S. Confirm your local transfer process with your dealer/FFL before ordering.
Quick take (TL;DR)
If you want a lightweight .22 LR suppressor that’s easy to clean and doesn’t turn your pistol into a front-heavy brick, the ZEROED 22 checks a lot of boxes.
- Big strengths: very light, compact, user-serviceable, direct-thread simplicity.
- Main tradeoffs: it’s not a HUB-mount can (direct-thread only), and rimfire performance depends heavily on ammo/barrel length.
- Skip the malarkey and grab one now!
What is the CMMG ZEROED 22?
CMMG’s ZEROED line is positioned as durable, full-auto-rated suppressors designed to perform without unnecessary complexity. In the rimfire slot, the ZEROED 22 is a compact, serviceable .22 LR suppressor intended for pistols and rifles.
CMMG ZEROED 22 specifications
From CMMG’s published specs for the ZEROED 22:
- Caliber: .22 LR
- Ratings:
- .22 LR: Full-auto rated- .17 HMR / .22 Mag: Semi-auto only
- Mount / attachment: Direct thread
- Muzzle thread: 1/2×28
- Weight: 5.6 oz
- Length: 5.5 in
- Diameter: 1.0 in
- Bore diameter: .224 caliber
- Materials:
- Baffles: 17-4 stainless steel- Tube & front cap: 6061-T6 aluminum- Rear mount: 4140 steel
- Finish: Hard coat anodized
- HUB compatible: No
Design & features that matter in real use
1) User-serviceable
Rimfire suppressors load up with lead and carbon quickly, especially with bulk ammo. The removable end caps and baffle stack on the ZEROED 22 make it realistic to keep the can running and keep disassembly from turning into a nightmare.
CMMG also calls out baffle indexing marks for reassembly, which is a small detail, but it helps you get consistent alignment and repeatable performance.
2) 1/4 hex front cap for easier take-down
CMMG includes a 1/4 hex opening on the front cap so you can use a hex bit or Allen wrench during disassembly if carbon fouling gets stubborn. That’s a practical feature for a rimfire can, especially once you’ve got a few range trips on it.
3) Lightweight + 1 diameter
At 5.6 oz and 1 diameter, the ZEROED 22 is clearly designed to stay pleasant on pistols. In many setups, a 1 tube can reduce the need for very tall suppressor height sights (your exact mileage will vary by host pistol/sight setup).
Sound suppression: what to expect
Any rimfire suppressor’s perceived sound depends on:
- Ammo (standard velocity vs. high velocity vs. subsonic)
- Barrel length
- Action type (semi-auto pistols and rifles vent more noise than bolt guns)
- Environment (indoors vs outdoors)
With the ZEROED 22, the combination of compact size and full-auto rated .22 LR capability suggests it’s designed to balance suppression with durability and portability.
If your priority is maximum suppression above all else, you may prefer a longer/heavier rimfire can, but most people buying a tiny rimfire can want the overall package: light, easy, and quiet *enough*.
Mounting & compatibility
Direct-thread (1/2×28)
The ZEROED 22 is direct-thread 1/2×28, which is the most common rimfire threading standard in the U.S. That’s good news for simple compatibility with:
- popular .22 pistols with threaded barrels
- .22 rifles with threaded muzzles
- .22 AR conversion uppers / dedicated .22 uppers
Because it’s not HUB compatible, it’s not meant to be a modular mount system can. That’s not necessarily a downside for rimfire, direct-thread often keeps things lighter, cheaper, and simpler.
Cleaning & maintenance tips (rimfire reality)
If you buy any rimfire suppressor, plan on regular cleaning. A simple routine:
1. Disassemble before the can gets cemented together.
2. Soak and scrub baffles/end caps as needed.
3. Avoid damaging threads (carbon can make things feel cross-threaded when they aren’t).
4. Reassemble per indexing marks (if present) and ensure everything seats correctly.
Follow the manufacturer’s manual and cleaning guidance for materials/finishes.
Pros and cons
Pros
- Very light (5.6 oz) for a rimfire suppressor for under $300
- User-serviceable with removable caps and baffle stack
- Direct-thread 1/2×28 is straightforward and common
- 1 diameter helps keep pistol setups manageable
- Full-auto rated for .22 LR (per CMMG)
Cons / considerations
- Not HUB compatible (no modular mount ecosystem)
- Rimfire cans require more maintenance than many buyers expect
- Suppression performance varies a lot by host/ammo; compact cans usually trade some suppression for size/weight
Who the ZEROED 22 is for
You’ll likely enjoy the ZEROED 22 if you:
- want a first rimfire suppressor that’s simple and easy to maintain
- shoot a lot of pistol-hosted .22 LR (where weight and diameter matter)
- want a can that is light enough that you’ll actually leave it on the gun
Who should look elsewhere
Consider other options if:
- you want a modular mount system (HUB ecosystem)
- you prioritize maximum suppression and don’t mind more length/weight
- you intend heavy use on calibers outside its rating (follow CMMG’s guidance: .22 LR full-auto; .17 HMR/.22 Mag semi-auto)
Price & value
CMMG lists the ZEROED 22 starting at $274.95 (price can change). In the rimfire suppressor world, that puts it in a range where value matters, especially if the can is easy to service and doesn’t require you to buy a pile of extra mounting hardware.
FAQ
Is the CMMG ZEROED 22 full-auto rated?
Per CMMG’s product listing, it is full-auto rated for .22 LR. For .17 HMR and .22 Mag, it is semi-auto only.
What thread pitch does it use?
CMMG lists 1/2×28.
Is it user-serviceable?
Yes, CMMG states it has removable end caps and baffles for cleaning.
Does the ZEROED 22 use HUB mounts?
No, CMMG lists HUB Compatible: No for the ZEROED 22.
Bottom line
The CMMG ZEROED 22 is built around the three things rimfire shooters usually care about most:
1) light weight, 2) easy cleaning, and 3) simple mounting.
If you want a straightforward .22 LR suppressor that won’t make your pistol feel awkward and you’re willing to keep up with rimfire cleaning, it’s a compelling option.