Air Arms S510XS FAC carbine, Regulated, Right Hand Walnut Stock Precharged pneumatic Regulated Sidelever cocking 10-shot repeater 2-stage adjustable trigger 5-position Transfer Port Power Adjuster 11mm scope grooves (no open sights) 3625 psi fill pressure (250 bar) Built-in manometer (air pressure gauge) 186cc air tank Lothar Walther barrel Shrouded barrel for extra-quiet shooting Righthand walnut stock Checkered pistol grip and forearm Superbly blued Ventilated rubber buttpad