Air Arms S500 XS Xtra FAC sidelever air rifle Precharged pneumatic Sidelever cocking Single-shot 2-stage adjustable trigger 5-position power adjustment dial 11mm scope grooves (no open sights) 3,625 psi fill pressure (250 bar) 288cc tank Built-in manometer (air pressure gauge) Lothar Walther barrel Shrouded barrel for extra-quiet shooting Righthand walnut stock Checkered pistol grip and forearm Superbly blued Magnificent stock finish Ventilated rubber buttpad