The Gemtech Abyss 5.56 suppressor features patent-pending technology designed to reduce muzzle flash, sound, and gas blowback. Its low-back-pressure design is intended to improve shooter comfort and host reliability, while the high-efficiency baffle system supports sound reduction in a hard-use configuration. Constructed from 17-4PH stainless steel and 6AL-4V titanium, the Abyss combines durable materials with a compact 6.2-inch profile. Its GM-S1 end cap is designed to minimize muzzle flash from the first shot to the last, and the suppressor is full-auto rated. HUB-compatible mounting provides a 1.375-24 attachment interface. Specifications Manufacturer: Gemtech Model: Abyss 5.56 Caliber Rating: 5.56 NATO, 6mm ARC, 5.7x28mm Length: 6.2" Diameter: 1.64" Weight: 16 oz. Materials: 17-4PH stainless steel and 6AL-4V titanium Suppressor Finish: High-temperature Cerakote Mount/Muzzle Finish: Armornite, PVD Attachment Interface: 1.375-24 HUB Mount Type Listed: 1/2x28 Rating: Full-auto rated Design: Low back pressure Baffle System: High-efficiency design End Cap: GM-S1 flash-reducing design Minimum Barrel Length - 5.56 NATO: 7" Minimum Barrel Length - 6mm ARC: 7" Minimum Barrel Length - 5.7x28mm: 3" Get it at BattleHawk Armory!