join date sept 2018.....3 whole posts and the OP comes here and asks those questions?
I smell a rat.
Always a possibility.
But if that is the case, maybe said rat will find out that its a lot of bloody work, and skilled work at that, to make anything that will safely and consistently function. And requires thousands of dollars more worth of tools, than it would cost to hang out with the homies and buy one.
Even buying component parts and building a firearm up from them, is a losing proposition, from a financial and practical perspective. Buying a forging or "80 percent" receiver blank, and making it work, requires more skill time and money, than just buying one legally, and the end result, unless you have some real, marketable skills, will be more expensive and less valuable, than if you had bought one.
Now, appreciating that there are actually folks out there stupid enough to provide illegal guns to street rats, they usually also find out that said street rats will send them down the river in a plea bargain deal to try to avoid being in as much trouble when caught. Who knows, they might end up cellmates, eh?
Under the Laws now, building a gun is legal, as long as it's one you can legally own, anyway, but it's a lot of work, and there are damn few around that will go to the trouble, else we would be awash in home made firearms. I can recall seeing maybe three, in my life, in person, that were finished, and have seen perhaps a dozen more on line from, mostly, a core group of very very few actual guys out there that had both the skills and the willingness to apply them. None of them were street rat types, or willing to hang out with those either.
Short answer, if you need a step by step, hand-holding guide, you are not much of a risk of ever getting it done.