Dude, I think it's been made clear here that there aren't guys field stripping M4's at gun ranges to determine 922r compliance.
It's an addon FELONY.
Did you hear the word FELONY? Could be a misdemeaner, but I'll bet when it's compounded with whatever else, it would be a FELONY.
So when the Gubment is nailing your hide to the wall for the primary offence, they can get bonus points for an illegal gun charge. SCORE!
They put Freakin' Martha Stewart in prison for God's sake. Who are you?
You want to play with BATF? That's your business and ya takes ya chances.
But if I was gonna play that game? I wouldn't be shooting my mouth off about it on the Internet...
That's just bad playin' technique in my opinion.