suggestion for custom gun
I am planning on making a custom gun... but I am new to airsoft and do not really know what i need to build a gun. I would rather spend the money at the start than have to buy a complete one and eventually replace everything on it. So I would like the reciever to be metal which is $260-$380 give or take. Systema complete gearbox ($310) Kings Arms G27 grip ($40) Madbull patriot kit small ($150) Star C-mag ($150-$200) and the best possible batteries for this setup. So is there anything else i would need and is this setup realistic (as in functional)? Last question is what is the best way to do it buy a complete one and upgrade it as I go and sell unused parts or build from scratch. Thanks.