Now this is a rare package, a fully installed wolverine Hydra gen 2 into a G&G M14 version 7 gearbox. Comes with entire Hydra kit and a Amped Airsoft battery. This is completely drop into whatever G&G M14 you have, all you have to do is turn a few screws, and plumb the wire and line through your existing stock. It had never seen a war and barely had over a thousand rounds through it. I have two videos of the set up, one while it was in the gun and one outside of it to show how it functions. I can message it and more photos to you upon request. This is a great deal for someone who wants to completely change their gun. 3 more things- 1. I will entertain swaps(SR25, M110, mk12, wood m14, SSG24,etc.) 2. I would highly favor a core aeg gearbox our of your existing G&G M14 sent in return(motor, wiring, completely functional). I would take $30 or so off depending on condition. 3. Cash is king-OBO *Cross-listed*