VFC Avalon Calibur Upgraded internals as listed: Maxx Pro Hopup unit Maple Leaf 60* bucking Prometheus 6.03 tightbore barrel Maxx CNC Trigger Aztech Piston G&G G2 Gears Gate Titan Mosfet w deans connector Everything else is stock, I'm asking for 500$ obo. Please let me know if you have any questions, I can either ship with extra charges or meet in person, thank you!