This is a listing for a used Planet Eclipse GEO 3.1 Electronic Paintball gun. This marker includes an IV core. This marker has been tested by our factory trained tech, and has been found to be in working condition. See images below for more details. Features Clamping Deftek Feed Technology  ST2 Bolt  Break-Beam Sensor System  Solenoid Flow Control  Bespoke Solenoid Valve  Spool Valve Operation Air Supply Filter  MIcro & Opto Trigger Setup  SL4 'Self Purging' Inline Regulator  Ergonomic 3D Contoured Grip & Wrap Around Console  On-Board Electronics With Transflective LCD Display  Push On/Off Purge System