The Radical Defense LS5TI is a titanium 5.56mm/.223 Rem rifle suppressor built to be capable of sustained full-automatic fire while shedding weight compared to steel alternatives. Radical Defense threads this suppressor in a 1/2×28 pattern and mounts it via the KFM system. It favors shooters who want a lighter-weight, full-auto-capable 5.56mm can.

Key Specifications

• Rated for .223 REM/5.56 NATO ammunition.
• Uses a 1/2×28 KFM flash hider to mount, not threaded directly onto the barrel.
• Built from titanium for reduced weight.
• Mounts via the KFM system.
• 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 1/2×28, and the suppressor locks onto it with a quick-detach taper interface.

Buy This Radical Defense 5.56mm 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.