This Clutch-Lok QD mount doubles as a muzzle brake for our 7.62MM SLH/SLX suppressors. It offers a quick and simple attachment of your suppressor and less felt recoil when the suppressor is removed. – Shoulder Interface: 25-degree taper for use with SIG SAUER Taper-Lok barrels. – Overall Length: 2.2 inches – Threads: 5/8 in-24 tpi – Weight: 3.3 oz – Material: Stainless Steel – Technology: Clutch-Lok QD – Type: Muzzle Brake – Barrel Interface: 25-degree taper – Caliber: 7.62 NATO