The M16A2's will be "gifts" from the feds under the DRMO program. So they will be MG's in that they have the capability to fire semi or 3 round burst.
I understand that we can just slap any legnth upper on these and rock and roll.
We will also approve officers to buy their own AR from our approved list for duty use, and these rifles will be regulated as any privately owned firearm (all NFA rules apply).
Thanks to all the knowledgable folks who gave me a wealth of info regarding NFA regs, and class three manufacturing. I will definately go to someone who knows SBR's and the related gas system glitches that can occur. The common theme seems to be, going with an established, reputable firm, and using the "pigtail" type gas system to ensure reliability.