Sig Sauer SRD338Ti-QDThe SRD338Ti QD is a Titanium alloy based silencer that use QD (Quick Disconnect) muzzle devices to attach the silencer to the rifle. The SRD338Ti QD uses the 7.62mm QD muzzle device system is available in 5/8”-24tpi threads match the vast majority of modern sporting rifles in .338/.308/7.62mm on the market today. The rear mount has wrench flats to torque the silencer to the barrel. There is a secondary retention latch that is depressed to remove the silencer from the QD mount. The SRD338Ti QD is rated up to 338 Lapua Mag and any other rifle cartridges that are of equal or less projectile diameter, pressure and case capacity. Examples of this would be .204 Ruger, .223/5.56x45mm, 5.45x39mm, 300 Win Mag, 7.62x35 (300 Blackout) 6.5 Grendel, 6.5 Creedmoor, 6.8 Spc, .260 Remington and other cartridges. T The SRD338Ti-QD comes with one M18x1.5mm Taper-Lok muzzle brake. Other muzzle devices are available.