The Umarex Steel Storm Tactical BB gun has a 30 shot capacity, with a 300-round reserve. The Steel Storm shoots as a semi-automatic, but can run full-auto 6 round bursts, too. The Steel Storm is a compact pistol powered by dual 12g CO2 capsules housed in a drop out magazine for ease of access. If you are looking for a compact powerhouse, this is it.Features :Semi-automatic & 6-Round bursts30 Shot capacity300-Round reserve