Do you have a Empire Battle Tested-4 marker and want to shoot faster? Are you tired of getting knocked out of games by better guns? Then take your Empire Battle Tested marker and upgrade it with the Electronic Grip Frame.The Empire Battle Tested E-Grip changes the mechanical components of the trigger mechanism to an electronic operation. Pushing the sleek buttons on the back of the E-Grip allows your Empire Battle Tested marker multiple firing modes, including semi-auto, adjustable ramping and adjustable full-auto. You will noticeably increase your firepower when you install the Empire Battle Tested 4 E-Grip. Easily installed and featuring a double trigger, the E-Grip will throw more paint downfield than your BT ever did before. Match a BT Rip Clip™ with your E-Grip upgrade to experience the maximum rate-of-fire. The competition is toast when you fire up a BT marker installed with an Electronic Grip Frame. Features: * Double Trigger * Lightweight Composite Materials * Sleek Pushbutton Controls * Multiple Firing Modes: Semi-Auto, Adjustable Ramping * Fits All BT-4 Series Markers