The Air Venturi OmniStormTM is a revolutionary break barrel air rifle featuring the innovative OmniPistonTM technology that combines easy user adjustability with traditional gas piston power.The groundbreaking OmniPiston system delivers an exceptional, vibration free shot cycle across all power levels. Available in .177 and .22 calibers, the OmniStorm achieves impressive velocities with lead pellets:.177: 1100 fps with 7-grain pellets (18.8 fpe).22: 850 fps with 11.9-grain pellets (19.1 fpe)The innovative OmniTuner allows for customization of velocity and cocking effort allowing you to go from shooting outdoors to indoors all with the same air rifle. Or allowing parents and children to utilize the same rifle. What used to require the purchase of multiple air rifles, now only requires one:Operating pressure range: 205 - 550 PSICocking effort range: 25 - 50 LbsThe OmniStorm comes equipped with red and green fiber-optic sights but also has an 11mm dovetail rail for mounting the include...