The GP (General Purpose) suppressors were designed to provide the customer with a lightweight durable and affordable suppressor for general use. Constructed entirely of 17-4 stainless steel and utilizing our patented baffle technology GP suppressors are both durable and high performance. Front and rear 3/4 ( or 19mm) wrench flats provide options for traditional use or forend rail integrated applications. GP suppressors come pre-drilled with a .125 hole for pinning to create one stamp guns. The GP7