Kimber America Muzzle Thread Adapter, 7/16X28 to 5/8X24, Matte finish, Silver 4700055 This stainless steel adapter easily allows you to add an aftermarket muzzle brake or suppressor to your Kimber mountain rifle" converting a 7/16 x 28 threaded muzzle to a 5/8 x 24 threaded muzzle. For threaded barrels only.