Developed over an unprecedented 7-year development program, the Wolverine is an all-new modernised design with new safety and improved mechanical features. The new design from Daystate features a bolt open safety system which prevents damage to the seals by firing the gun whilst the bolt is open. The magazine indexing system has also had an overhaul a small amount of air is used during each shot to raise a pin which allows the next pellet to cycle around in the magazine and be loaded. A useful feature of the Wolverine air rifle is the ability to switch the bolt between left and right handed use. This model is fitted with a lighter weight carbon bottle with a higher capacity too for a higher shot count. Specifications, Calibre: 22, Power: 12 ft/lbs, Bottle: 480cc, Shot Count: 220, Weight: 3.3kg, Overall Length: 107cm (42 inches), Please Note Specifications taken from manufacturers website and may not be current or entirely accurate.