The military-chosen Mk13-SD is an ultra-lightweight, fast-attach, high performance sound and flash suppressor engineered for bolt action rifles chambered in .300 Winchester Magnum and 7.62x51mm. The suppressor features a Grade 9 Titanium construction along with a monolithic baffle core made of Grade 5 Titanium for the ultimate combination of weight and durability. This model features an FDE Cerakote pattern and requires a 90T Taper Mount (not included). *Sound reduction ratings are approximate based on measurements by the manufacturer and may vary depending on firearm setup and environmental factors.*