The SIG Sauer SLH300Ti-QD suppressor is a titanium .300 Blackout can fitted with SIG’s Clutch-Lok quick-detach mount (brand part no. SLH300TI-QD). Titanium keeps the can light, which helps on a short-barreled AR or a handy carbine. The Clutch-Lok QD mount locks onto a compatible SIG Clutch-Lok muzzle device, so the suppressor moves between rifles without unthreading. The .300 Blackout cartridge runs in AR-15 pattern rifles and is widely shot subsonic under a can. It suits a shooter with more than one .300 BLK host who wants one light suppressor for all of them.

Key Specifications

• The caliber rating is .300 Blackout, a cartridge widely run with subsonic loads under a suppressor.
• The body is titanium, which keeps weight at the muzzle down.
• The mount is SIG Clutch-Lok QD, for fast attachment and removal.
• The host rifle needs a compatible SIG Clutch-Lok muzzle device, the interface the QD mount locks onto.

Frequently Asked Questions

Is this the QD version of the SLH300 Ti? Yes. The SLH300Ti-QD uses SIG Clutch-Lok QD and locks onto a compatible SIG Clutch-Lok muzzle device.

What is it made of? Titanium, which keeps the suppressor light.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Buy the SIG Sauer SLH300Ti-QD Suppressor, .300 Blackout, Titanium, Clutch-Lok QD

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through SIG Sauer‘s suppressors lineup and our Lubbock, Texas team will handle the transfer. One light can, several .300 BLK rifles: that is the case for the QD version.