Product Description
A-Tec CMM-4 Rimfire Moderator
The A-Tec CMM-4 Rimfire Moderator is a premium modular sound moderator designed for rimfire rifles and .22 LR pistols. Built with A-Tec’s renowned engineering, the CMM-4 delivers outstanding sound reduction, lightweight handling, and long-lasting durability, making it an excellent choice for hunters, target shooters, and pest controllers.
Featuring a modular construction, the CMM-4 is supplied with four removable baffle modules, allowing you to customise the moderator to suit your shooting style. Whether you prioritise a compact setup or maximum sound suppression, the modular design provides the flexibility to adapt. For shooters seeking even greater noise reduction, the moderator can be configured with six modules.
Each module weighs just 14 grams, keeping the overall weight low without compromising performance. With an overall length of 142 mm and a 30 mm diameter, the CMM-4 offers excellent balance and handling on a wide range of rimfire firearms.
Designed for dependable performance across multiple calibres, the CMM-4 is approved for use with .22 LR, .22 WMR (.22 Magnum), .17 HMR, and .22 Hornet, making it one of the most versatile rimfire moderators available.
Ideal for reducing muzzle report while maintaining accuracy, the A-Tec CMM-4 is easy to maintain thanks to its modular design, allowing for straightforward cleaning after extended shooting sessions.
Compatible Calibres
- .22 LR
- .22 WMR (.22 Magnum)
- .17 HMR
- .22 Hornet
Key Features
- High-performance modular rimfire sound moderator
- Designed for rimfire rifles and .22 LR pistols
- Supplied with 4 modular baffles
- Expandable to a 6-module configuration for increased sound suppression
- Lightweight design with each module weighing only 14 g
- Overall length: 142 mm
- Diameter: 30 mm
- Excellent sound reduction with .22 LR and .17 HMR
- Durable construction for long service life
- User-friendly modular system for easy maintenance and cleaning
Available Thread Options
- 1/2″-20 UNF
- 1/2″-28 UNEF
Why Choose the A-Tec CMM-4?
The A-Tec CMM-4 combines lightweight construction, modular versatility, and impressive sound suppression in one compact package. Whether you’re controlling pests, enjoying a day at the range, or hunting small game, this moderator offers the flexibility to tailor your setup while maintaining excellent balance and reliable performance. Its robust build quality and compatibility with multiple rimfire calibres make it a popular choice among serious shooters looking for a dependable, easy-to-maintain moderator.
Specifications
| Specification | Details |
|---|---|
| Brand | A-Tec |
| Model | CMM-4 Rimfire Moderator |
| Type | Modular Rimfire Sound Moderator |
| Calibre Compatibility | .22 LR, .22 WMR (.22 Magnum), .17 HMR, .22 Hornet |
| Configuration | 4 Modules (Expandable to 6) |
| Weight Per Module | 14 g |
| Overall Length | 142 mm |
| Diameter | 30 mm |
| Thread Options | 1/2″-20 UNF, 1/2″-28 UNEF |
Perfect for: Rimfire hunting, rabbit control, vermin management, target shooting, range use, and recreational shooting.

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