The RADICAL DEFENSE CS3 is a .30 Caliber suppressor, threaded 5/8×24 for attachment to a compatible muzzle device. RADICAL DEFENSE builds it for shooters seeking dependable sound suppression on a compatible host firearm.

Key Specifications

• Rated for .30 Caliber ammunition.
• Mounts via Radical Defense’s KFM taper-lock hub system onto a 5/8×24 KFM flash hider, not direct barrel threading.
• Weighs 14.4 ounces.
• 3D-printed from Haynes 282 nickel superalloy (full-auto rated) with a proprietary non-reflective coating.
• Has a 1.78-inch body diameter and mounts via the KFM Taper Lock hub system.

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.

What caliber is it rated for? .30 Caliber.

How does it mount? Via Radical Defense’s KFM taper-lock hub system, not direct-thread. The KFM flash hider threads onto the host at 5/8×24, and the suppressor locks onto it with a quick-detach taper interface.

Buy the RADICAL DEFENSE CS3 Suppressor, .30 Caliber

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 RADICAL DEFENSE‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.