Hammerli 850 AirMagnum. 88g Co2 powered air rifle..22 calibre pellet. Ambidextrous synthetic stock. The 88g Co2 cartridge is fitted by removing the fore stock along with the bipod which is included. Rifle comes with a 3-9x40 scope with mounts on a dovetail rail and a silencer. Bipod features picatinny rails for attaching accessories.