specification CALIBER 4.5 (.177) /5.5 (.22) VELOCITY Cal. 4.5 5.0g pellet :pump for 3 times, 600fps Pump for 4 times,700fps Pump for 8 times,800fps Cal. 5.5 1.0g pellet: pump for 3 times, 500fps Pump for 4 times,600fps Pump for 8 times,700fps SAFETY Manual safety,1-6lbf WEIGHT 2.6KGS TRIGGER Adjustable 0.5-4lbf L*W*H 980X55X200 MAGAZINE 4.5(.177) holds 9 pellets 5.5(.22) holds 7pellets