The Air Arms Pro Sport is an underlever spring piston air rifle with a distinctive thumbhole walnut stock. Same TX200-derived mechanism with fixed barrel and Lothar Walther barrel. The thumbhole stock provides a more secure hold for precision target shooting. Type: Rifle Action: Spring Piston Caliber: 177 Cal Capacity: 1 Year introduced: 1996, UK Weight: 112 oz Overall length: 43.3" Status: Active Intended use: target, field-target, competition