Well, Ive had my scar for about a year now. Been pretty happy with it but been to nervous to go inside the gearbox. But, now I have money and I want to upgrade some internals. What I want to do is, increase the rps, get faster trigger response, and run a LiPo. Heres my problem. I have never gone into a gearbox, let alone even know how to get it out of my gun. I have no idea what to do in order to achieve this, or where to even begin. So, if you guys could direct me to some good guides, maybe show me some good parts, and what to stat away from, that would be amazing. Finally, all cash I have on hand now is 175 dollars, but I don't want to cut any corners, so if there is a part that will go over my budget, still tell me, and I will just save up for that later.