The KGM Suppressors R556A2 (brand part no. RS-R556A2-QD-BLK) is a 6mm/5.56 NATO suppressor built to meet and exceed SOCOM specifications for full-auto firing, finished in black nickel alloy and stainless steel. KGM Technologies designed the R556A2 to enhance rifle accuracy and provide superior repeatability while maximizing sound suppression and minimizing impact on a rifle’s operating system, threaded 1/2×28 with a quick-detach mount. The R556A2 favors 5.56 shooters who want a SOCOM-spec, full-auto-rated quick-detach can.

Key Specifications

• Rated for 6mm/5.56 NATO ammunition.
• Threaded 1/2×28 via the quick-detach mount.
• Built from black nickel alloy and stainless steel.
• Meets and exceeds SOCOM specifications for full-auto firing.
• Designed for minimal impact on a rifle’s operating system.
• Has a 1.5-inch body diameter and ships with a 1/2×28 flash hider mount.

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 it full-auto rated? Yes, built to meet and exceed SOCOM specifications.

How does it mount? Quick-detach.

Buy the KGM Suppressors R556A2 Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4 and transfer through a licensed NFA (SOT/Class 3) dealer, with no federal transfer tax and an extended federal approval wait before delivery. Order through Kgm Technologies‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.