RAD 22 - The RAD(TM) 22 suppressor builds on our advanced technology to deliver unmatched performance. The RAD 22 uses our latest innovation - the Flow Baffle(TM) - a unique design that incorporates radial grooves that direct expanding gases away from the bore-line, routing them forward through the suppressor and away from the shooter. This means the RAD 22 runs quiet and much cleaner than other rimfire suppressors, and it's easy to disassemble and reassemble without special tools or indexing. Materials: The RAD 22 is made with titanium and 17-4 heat-treated stainless steel, has a lifetime warranty, and uses a A 1/2 x 28 thread pitch to connect directly to the host firearm. OSS HX-QD 556 #1443 An extremely rugged suppressor, the HX-QD 556 is built with proven Flow-Through technology, delivers hearing safe mid-130s dB performance, has no barrel length restrictions, is full-auto rated, and easily passes the USSOCOM Reliability Stress Test its the ideal suppressor for all 5.56 rifles. OSS HX-QD 7.62mm #1542 The strong "utility player" silencer, the HX-QD 762's features were heavily influenced by the U.S. Army CSASS requirements. This silencer will fill the widest range of calibers and host rifles of any of the OSS silencers. As with all of the OSS Helix style silencers, the patented Flow-ThroughA(R) technology of this silencer redirects the expanding gasses in a helical pattern allowing the gas to expand and cool as they move through the silencer body. This unique design also means that the expanding gas generate torque on the silencer and snugging it onto the mount. As the gas moves through the 17-4 stainless and Grade 5 titanium coils, the resulting effect on the silencer tube is a remarkably cooler and extremely durable suppressor. HX-QD 556 TI The HX-QD 556 Ti suppressor - with patented and proven Flow-ThroughA(R) and Torque LockA(R) technology - is built with a combination of Grade 5/Grade 9 Titanium and 17-4 stainless steel. It delivers superior accuracy and repeatability, is full-auto rated, and compatible with 5.56 rifles with no minimum barrel restrictions. HX-QD MAGNUM TI A short, lightweight and durable Flow-Through suppressor for large bore rifles, the HX-QD Magnum Ti is built with Grade 5 titanium and heat treated 17-4 stainless steel. Perfect for precision shooters, it delivers hearing safe suppression from 5.56 (sub-133 dB) to .338 (sub-139 dB), is full-auto rated on 5.56, and cross-platform compatible on 5.56 up to .338 Lapua no other .338 suppressor is this versatile.