Stoeger XM1 S4 Suppressed PCP Air Rifle Combo . Precharged pneumatic Bolt action with oversized Thridion checkered lever Synthetic all-weather thumbhole stock Integrated S4 sound suppressor 2900 PSI/200 BAR air cylinder Up to 50 shots per fill Single stage trigger Interchangeable cheekpieces and grips Buttpad spacers Pro Adaptive Checkering on stock Max. velocity: up to 1000 FPS (alloy pellets) Sling mounting points on stock and forearm Adjustable front fiber optic sight Adjustable rear sight Left and right forearm Picatinny accessory rails Extended left-side forearm Picatinny rail with magnetic magazine holder Removable air gauge cover Male Quick disconnect fitting machined onto fill probe Includes magazine, single-shot tray, and4x32 scope with rings.