Greetings- stop by the intro thread, and say hello.
To address your question- what you have just asked for is a Federal felony, worth 10 yrs (no parole) and $10,000 fine.
Since May 1986, NO full auto firearms that are not ALREADY registered with the BATFE can be transferred to a private citizen. That is why the price of a LEGAL M16 that CAN be transferred is around $16,000- $18,000.
What you have described is "manufacturing a machine gun". In the US, it cannot be done legally except by the holder of a FFL MANUFACTURING license, with an SOT to make machineguns. Those newly made guns can ONLY be transferred to a Law Enforcement Agency, to another machine gun dealer or to a military force.
You will also find there is no such thing as a "drop in" collection of parts on current guns. If a gun is "readily convertible" to a machine gun, it is regulated by the BATFE.