Technical Data Reference 111.09.220 111.09.221 Caliber (mm (inch)) 4,5 (.177) 5,5 (.22) Weight (Kg) 2,9 2,9 Barrel length (mm) 484 484 Total length (mm) 1.160 1.160 Speed (m/s) 305 250 Energy (J) * 22,3 22,3