The LPM DUTY 5.56 was designed to provide high holistic signature reduction for both operators and bystanders on gas-operated firearms. This requires moderate gas blowback and sound to the shooter while maintaining a high level of muzzle sound suppression. A simplified version of our Torch 5.56/6mm silencer, the DUTY achieves a much lower price point and smaller size for budget minded shooters who are willing to tolerate slightly more back pressure and gas blowback. Tuning of the host weapon is recommended. Weight 11.7 oz (No mount) Length: 5.1″ (No mount) Diameter: 1.75″ Thread Pitch: Universal 1.375-24 TPI pattern mounting system, ships with DLC titanium 1/2-28 direct thread adapter (.9 oz) End caps: Solid Caliber Rating: Up to 6mm, full-auto rated Minimum Barrel Length: 7.5″ Finish: Graphite Black Cerakote™ Warranty: Lifetime warranty for workmanship and material defects. This warranty covers everything except willful destruction and normal wear and tear Idaho Arms & Ammo 208-809-0939 www.idahoarmsammo.com