Diana Air Rifle 54 Airking Pro Air Rifle, Beech Single-shot Sidelever action Spring-piston Recoilless action Beech stock Forearm stud to attach bipod Max. velocity: 1100 FPS (.177), 900 FPS (.22) Two-stage adjustable T06 trigger 11mm dovetail optics rail Adjustable barrel weight comes installed Elevation adjustable front sight included Windage and elevation adjustable rear sight Rubber buttpad Checkered grip and forearm Barrel length: 17.3" Overall length: 44" Weight: 9.9 lbs.