specification CALIBER 4.5mm(.177)/5.5mm(.22) VELOCITY Cal 4.5 0.55g pellets,approx. 70 shots at full power car 5.5 1.0g pellets 1000fps,approx. 50 shots at full power AIR CAPABILITY 250cc UNIT WEIGHT Adjustable manual safety, ON 1~6Lbf/OFF 1~6 Lbf SAFETY Adjustable manual safety,ON 1~6 Lbf/OFF 1~6 Lbf REGULATED PARTS Default not included,better choose with consistent valve,regulating velocity 500~1000fps CONSISTENT VALVE Default not included,but optional WEIGHT 3.50kg TRIGGER Two-stage adjustable,1-6Lbf L*W*H 1170*48*60(mm) MAGAZINE 4.5mm(.177) holds 13 pellets 5.5mm(.22) holds 11 pellets SUPPRESSER Split suppresser FILL PRESSURE Max.20MPa