This .177 calibre single shot pellet air rifle is spring piston powered for consistent velocity. Its many features include fully rifled steel barrel, safety catch the automatically engages each time the trigger is pulled, and a superb progressive trigger pull. Comes complete with a superb match style diopter sight, fully adjustable for both windage and elevation. The Biathlon Trainer has a superb stock and foregrip manufactured from high impact material as used in military weapons and is especially shaped for target work with cutaway sections to reduce weight.