Build for a project, but going a different route. Full drop in modify gearbox with a gate titan. Will come with a different flat red trigger. The drop-in gearset is perfectly shimmed. All you have to do is drop it into a gun! Any questions feel free to ask! Gate Titan Flat red trigger All Modify parts: Torque Modular Gear Set (21.6:1) Cylinder Piston Head 8mm Stainless Bushing Cylinder Head Anti-reversal Latch Tappet Rotary Spring Guide Ultra Piston Nozzle Spring(S120+) Price is shipped!