Sig Sauer MCX .177 CAL 88GR Co2 Powered (30 Rounds) Air Rifle, Black OPERATING SYSTEM: 90 Gram CO2 - CO2 and Pellets are not included Ideal for training and practice Patented 30-round magazine 18 inch rifled steel barrel Manual safety control Rifled steel barrel Patented 30-round magazine Picatinny optics &amp; accessory rail Original model specifications