This gearbox has less than 100 rounds run through it. All parts are in new condition with absolutely no wear. Selling because I'm out of room on my wall and I want another G3. This is a fully built V3 gearbox, ready to turn any V3 airsoft replica into a DMR. It comes with parts for a G36 or AK, including spare trigger, selector plate, nozzle, and top block. It's currently set up for a G36. It has the following upgrades: ZCI quick change gearbox shell Miroswitch V3 trigger unit Guarder G36 Bore Up Kit includes bearing Piston Head, Nozzle, Cylinder, and Cylinder Head, all - perfectly sealed with additional teflon tape and o-ring nozzle. Absolutely no air escapes when compressing the piston. The cylinder was shortened by 0.2mm in order to fit the ZCI gearbox shell.  8mm bearings at the bevel with steel bushings on spur and sector gears Quick swap bearing spring guide Lonex full steel rack piston Lonex V3 Tappet Plate ZCI Gears + I'm throwing in a set of Prometheus 16:1 "EG Hard" gears which have never been used and go for $85 on their own. Prometheus V2/3 Anti Reversal Latch ASG Infinity CNC Series 22TPA super torque motor Guarder M150 mainspring Also includes: Prometheus M120 spring (unopened, still in original packaging) Ultra Deans plugs (still in original packaging) - has original Tamiya mini plug installed. Buying these components separately would cost over $300 not counting labor to swap the upgrade parts over. This setup has enough torque to handle any spring you throw at it. Connected to a good 11.1v battery it could handle M170 springs, but nowhere local to me allows such high FPS, so I stopped at M150. I have included a Prometheus M120 spring if your local field doesn't allow super high FPS AEGs. It is currently configured for a G36 but the previously mentioned AK parts will be included. You will need to provide the safety block from whatever gun you drop this into. Alternatively you could strip this GB and double your money by parting it out.