RAP4 GI JOE Package with Marker have the premium version IV select core incorporates the semi-auto and full-auto firing modes, also helps to increase accuracy, thus making the marker slightly more expensive than its full-auto only counterpart. GI JOE Package Includes: - 1 x RAP4 Xpower Paintball Marker - 6 x RAP4 Magazines - 1 x 5oz CO2 Cylinders - 1 x Cleaning Kit - 1 x Tool Kit - 1 x Marker Oil - 1 x Manual and warranty - 1 x 250c RAP4 Paintballs More information of the products,pls visit: http://www.rap4.com/paintball/os/package-with-marker-p-243.html