Liberty Precision Machine Mach-L Ti. The Mach silencers are designed around the following requirements, in order of importance: Maximum sound reduction for a given length Maximum strength for a given weight No negative impact on accuracy Maximum visible flash signature reduction Low blowback for gas operated firearms Progressive baffle design and spacing allows us to tune the silencer for the various pressure regimes and gas dynamics experienced over the length of the silencer. The Mach series of silencers have market leading efficiency across many cartridges and firearm hosts. Features and Specs: 1.74″ Diameter 9.1″ long (no rear mount), 9.25″ with included 5/8-24 Rearden DTA Ti direct thread adapter 11.9 ounces (no rear mount), 12.7 ounces with included 5/8-24 Rearden DTA Ti direct thread adapter Graphite Black Cerakote™ finish No barrel length restrictions on any .30 caliber (or less) cartridge, muzzle brake recommended for barrels shorter than 14.5″ Removable front end cap with 3/4″ socket Lifetime warranty guarantees our products to be free from defects in workmanship and materials. This warranty covers everything except willful destruction and normal wear and tear