From now until September 30, purchase a BT-4 Combat and Empire HELIX Goggle System and receive a FREE 20OZ CO2 Tank!The Empire BT Combat Paintball Gun is the marker that started the BT Series. Itís the perfect scenario or woodsball marker, allowing you to build the perfect one-of-a-kind beast. Fully upgradeable, with a proven in-line mechanical design, this reliable and accurate marker is the obvious choice for use in your scenario or woodsball event. The front grip is removable and the military standard dual Picatinny rails accept many tactical upgrades like optics and other accessories like the BT Flashsight. The trigger system can be enhanced by installing the Double Trigger and Electronic Grip Frame to increase your rate of fire. With available upgrades like the HALO powered Rip Clip and Apex Barrel system, the Empire BT Combat Paintball Gun is a rugged system that allows for performance growth over time. If you are looking to customize your paintball gun, start with the Empire BT Combat and open a world of realistically styled marker configurations with the performance to back it all up.