SIG SAUER SLH .300 Titanium Direct Thread Suppressor - Black. Direct-thread attachment for simple, repeatable mounting. Multi-flow gas path tuned for maximum sound reduction and reduced blowback. Optimized for .300 BLACKOUT subsonic and supersonic use. Titanium construction for ultra-light weight and durability. Diameter 1.67 in (42 mm). Overall Length 8.8 in (224 mm). Weight 11 oz. Attachment Type Direct Thread.