Muzzle brakes are now available for the standard Mossberg 702 Plinkster (.22 LR autoloading), the scoped 802 Plinkster (.22 LR bolt-action with 4x scope) and the scoped model 817 (.17 HMR with 3-9x40 scope). In addition, muzzle brakes will be fit onto a scoped model 817 with a thumbhole stock and Tipdown forend (.17HMR with 3-9x40 scope), and lastly, an 817 (.17HMR) will offer a complete muzzle brake package plus an upgraded 4-16x50 scope featuring sun shade, flip-open lens protectors and a bi-pod. The thumbhole stock with a Tipdown forend provides a vertical, pistol-like grip for both hands, which offers the most natural, ergonomic position for the human hand to assume when holding a rifle to the shoulder. This results in a more natural positioning of the hands and a comfort level more conducive to accurate shooting, be it from the prone, kneeling, sitting or off-hand positions. Key features of the muzzle brake models include black synthetic stocks, convenient cross bolt safety and magazine release buttons; detachable 10-round magazine for the 702 and 802 models (a detachable 5-round magazine for the 817); 18-inch (702 and 802) and 21-inch (817) blued barrels.