Built to serve as a solution to the multi-gun and multi-caliber dilemma that suppressor owners face the Raptor comes in a variety of lengths & calibers to suit your individual needs. – Each Raptor suppressor connects via the provided Reflex mounting system or flush mount. You may also opt to utilize the Raptor Adapter to convert the base threads of the suppressor to the industry standard 1.375×24 thread pitch for use in conjunction with a wide array of QD mounts on the market. – Caliber 5.56/7.62/.338/.375 – Weight 9.50oz – Length 7.2 – Diameter 1.625