Umarex Steel Storm CO2 Gun

Umarex Steel Storm submachine gun BB repeater 30-rd non-removable mag 300-rd reservoir! Full-/semi-auto 6-rd burst mode in full-auto Uses two 12-gram CO2 cartridges Up to 300 shots per fill Integral Weaver/Picatinny optics rail and accessory rail -Umarex Steel Storm Tactical BB Gun