WELCOME the ABYSS(TM) suppressor to the GEMTECH Family! GEMTECH ABYSS(TM) 7.62. Featuring five of GEMTECH's latest patent-pending technologies the all-new ABYSS 7.62 is destined to refine the hard-use suppressor category. Its proprietary design reduces muzzle flash and decibels while also reducing gas blowback for improved user comfort and host reliability. Constructed of 17-4PH Stainless Steel and 6AL4V Titanium. (ABYSS has much greater wall thickness than many competitors but at a similar or lesser system weight). Caliber Range: 5.7x28 - 300 Win Mag. 1.375-24 (HUB) Direct Thread Mount Length: 6.8" Weight: 16.2 oz Diameter: 1.64" Low Back Pressure Design for greater host reliability and shooter comfort. GM-S1A(R) End Cap Design for minimized muzzle flash from the first shot to the last. Includes everything needed to mount and use the suppressor right out of the box. Short Barrel Rated. Full Auto rated. Made in U.S.A.