Looking to buy a trade gun kit. Have done some research and in looking around have found quite a few options. I was wondering what you guys thought about the different kits and which ones are the best in your opinions. Was also wondering about the locks and which one is the best. Also seems like most of the kits use the same parts so are they pretty much the same thing minus the precarve stock or is one or two companies supplying all of the stocks. Thanks for the help.