Number of Shots at Optimal Velocity (250-100bar)Model Apex Cocking System Side Lever Caliber 6.35mm / .25cal Magazine Capacity 10 80 Air Tube Volume 310cc Fill Pressure 250 BAR Stock Adjustable Butt Pad. Overall Length 850mm (33.4″) Barrel Length 480mm (18.9″) Weight 3kg Regulator Optional