Product Description

A-Tec CMM-6 Rimfire Moderator | .22 LR & .17 HMR Sound Moderator | 1/2″x20 UNF & 1/2″x28 UNEF

The A-Tec CMM-6 Rimfire Moderator is a premium modular sound moderator engineered for .22 LR, .17 HMR, and compatible air rifles. Manufactured in Norway by A-Tec, one of Europe’s leading suppressor manufacturers, the CMM-6 combines lightweight construction with outstanding sound suppression, making it an excellent choice for pest control, target shooting, vermin management, and small game hunting.

Designed around A-Tec’s proven multi-baffle modular system, the CMM-6 significantly reduces muzzle report while maintaining exceptional balance on lightweight rimfire rifles. Weighing just 130 grams, it adds minimal front-end weight, ensuring your rifle remains quick to handle whether you’re shooting from a hide, around farm buildings, or on the range.

Delivering up to 22 dB(C) of sound reduction (manufacturer’s figures), the CMM-6 helps reduce shooter fatigue, minimises disturbance to livestock and neighbouring properties, and provides a more comfortable shooting experience. Its compact 30 mm diameter complements both sporting and varmint-style rifles without appearing bulky.

Available with 1/2″x20 UNF and 1/2″x28 UNEF thread options, the CMM-6 fits many of the UK’s most popular rimfire rifles.

Key Features

• Premium modular rimfire sound moderator
• Designed for .22 LR, .17 HMR, and compatible air rifles
• Available with 1/2″x20 UNF or 1/2″x28 UNEF thread options
• Up to 22 dB(C) sound reduction (manufacturer data)
• Proven A-Tec multi-baffle internal design
• Lightweight construction at only 130 g
• Compact 182 mm overall length
• Extends just 170 mm beyond the muzzle
• Slim 30 mm diameter for excellent rifle balance
• Durable black finish
• Precision engineered and manufactured in Norway
• Ideal for pest control, rabbit shooting, vermin management, target shooting, and recreational rimfire use

Technical Specifications

Lightweight Rimfire Suppression Without Compromise

The A-Tec CMM-6 has been designed for shooters who want effective sound moderation without adding unnecessary weight or bulk. Its compact dimensions make it an excellent match for lightweight bolt-action rimfire rifles, semi-automatic .22 LR rifles, and high-performance air rifles fitted with the correct thread.

Unlike heavier one-piece moderators, the CMM-6 offers excellent handling characteristics, allowing fast target acquisition while maintaining the rifle’s natural balance. Whether you’re controlling rabbits, grey squirrels, corvids, or rats, the reduced muzzle report makes for a more discreet and enjoyable shooting experience.

Ideal For

The A-Tec CMM-6 is perfectly suited for:

• Pest control professionals
• Rabbit and small game shooting
• Vermin management around farms and estates
• Target and benchrest shooting
• Zeroing optics with reduced noise
• Plinking and recreational rimfire shooting
• Air rifle owners seeking a premium moderator
• Shooters looking for a lightweight alternative to larger suppressors

Why Choose the A-Tec CMM-6?

A-Tec has earned a reputation for producing some of Europe’s finest rifle moderators, combining innovative engineering with practical field performance. The CMM-6 continues that tradition, offering excellent sound suppression in a lightweight, compact package that won’t compromise your rifle’s handling.

Whether you’re using a CZ 457, Bergara BMR, Tikka T1x, Ruger 10/22, Savage Mark II, Anschutz, or another threaded rimfire rifle, the CMM-6 is a reliable choice for shooters who demand quality, durability, and effective noise reduction.