The AnechoX 45L is computer-designed for the fastest velocities and highest uncorking pressures associated with rifle cartridges that produce from 4 000 to 6 000 ft-lb of energy. The full-sized AnechoX 45L is the lightest quietest user-serviceable Titanium Suppressor ever designed for big-bore rifles from 37 to 45 caliber magnums. At Just 11 ounces (with DTA included). All AnechoX centerfire suppressors are made of Grade 5 Titanium with 17-4 Stainless blast chambers and blast baffles to handle extreme erosion uncorking pressure and temperature right at your firearms muzzle. All use the unique X-Baffle Anechoic Chamber System with an interrupted central tube and are finished with Cerakote C Series high-temperature thin film ceramic. The AnechoX 45L comes with a 5/8-24 Direct Thread Adapters installed. It also accepts any of the AnechoX Direct Thread Adapters or any industry standard 1-3/8-24 mount including Bravo Hub Pistons Boosters Nielsen Devices QDs Tri-lugs and more. To maximize sound performance and tailor your suppressor to your firearm Caliber Specific Front Caps (purchased separately) are a great option. Available in six sizes and four colors including 40 and 45 caliber.