Valken Tactical 1911 CO2 Metal Blowback BB Pistol, 4.5mm Realistic blow back action, functioning safety, Polymer/metal construction Removable "stick type" magazine Weight: 670g, power: Co2 12g power let Muzzle Velocity: 95-105 mps (310-345 FPS), energy: 2.34 joules w/5.1 grain steel BB Magazine: 20 round "stick type" magazine