The Radical Defense LS3 (Radical Defense part no. LS3-FDE) is a .30 caliber rifle suppressor finished in FDE and built to be capable of sustained full-automatic fire while giving operators durable, reliable performance. Radical Defense threads the LS3 in a 5/8×24 pattern and mounts it via the KFM system. The LS3 favors shooters who want a durable .30 caliber can in a desert-toned finish.

Key Specifications

• Rated for .30 caliber ammunition.
• Uses a 5/8×24 KFM flash hider to mount, not threaded directly onto the barrel.
• Mounts via the KFM system.
• Finished in FDE.
• Capable of sustained full-automatic fire.

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 rated for full-auto fire? Yes, it is capable of sustained full-automatic fire.

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 LS3 .30 Caliber Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with 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.