The first improvement you will see in GEO 4 is its customized design for a better user experience. The gun features a Bespoke Custom Milled body to ensure exceptional performance even during harsh and rough outdoor conditions.The Planet Eclipse Geo 4 is the latest arrival in the legendary Geo Paintball Gun series. However, Geo 4 is way smarter and advanced than its predecessors because it is upgraded to the max and offers Unrivaled reliability.