Air Arms S510 TC air rifle Precharged pneumatic (PCP) Sidelever cocking 10-shot repeater 2-stage adjustable trigger Adjustable power 11mm scope grooves (no open sights) 2900 psi fill pressure (200 bar) Up to 180 useful shots on low power; up to 60 on high! Built-in manometer (air pressure gauge) Lothar Walther barrel Shrouded barrel for extra-quiet shooting Ambidextrous Monte Carlo stock Dual raised cheekpieces Checkered pistol grip Superbly blued Magnificent stock finish Ventilated rubber buttpad