I have seen many people on the forum have made or modified a gun into their own. I am wanting to do so. I want to make a m16 with an extended barrel with 4 rails and a crane style stock,also it has to be electric, and mostly metal. I want it to be able to shoot around 350 fps. How would I go around doing so, what are all the parts needed to do so, where would I get the parts, do you have any of the parts, how much would this project cost? Also, would it be better to just buy a new gun? I want it to stay under $200 including shipping. Any info will help, also I would love to know info, pics, and the cost of your projects!