VFC HK416 Mods: Prometheus purple bucking and nub 11.5 inch outer barrel M110 spring 14 tooth steel piston Rocket airsoft 8mm steel bushings G&G 25k high torque motor 12:1 SHS gears CYMA platinum mosfet wired to deans WILL TRADE FOR A VFC GBB MP7 GEN 2 Shoots 1.5j