JT ER2 Paintball Marker Mods

Updated parts 9-27-18: Added new pump handle files that I shaved material off of and added a feed adapter with an extruded collar for better fit to marker and improved angle of tube to rear support part. The feed neck may slice and print with a "plug" inside but my part was such that it popped right out and cleaned up easily. Some sanding is to be expected for best fit. All parts have been printed in PLA and have held up in games with little to no issue.
I also added a 10rd tube shaped solid pa