The SA223TISD suppressor is engineered for dependable performance on calibers up to and including .223/5.56 in a compact, lightweight 6.2" design. Built with a Grade 9 titanium tube and durable 17-4 stainless steel internals, it delivers strength, corrosion resistance, and reduced weight. Its 1/2-28 direct-thread design ensures repeatable attachment and it is not rated for long action or magnum calibers. Sylvan Arms SA223TISD Short K 223 Rem Matte Black Titanium 1/2"x28.