Georgia Code section 16-11-121 defines what a "sawed off shotgun" is. Basically it looks like the federal definition. The main points being that the gun has a barrel of under 18" or has been modified to have an overall length of less than 26" This definition does not have any exceptions or exemptions for legally-registered NFA weapons. For that, you'd have to look at the code section that creates the crime and lists the elements of the offense. The trouble is, there appear to be TWO (2) such code sections. The first, 16-11-122, bans sawed-off shotguns (and machineguns, and silencers) but says to see 16-11-124 for exemptions. There you can find four (4) enumerated exemptions, the last of which is that the weapon is properly registered with the feds. The second Code section making it a crime to simply possess a sawed-off shotgun is 16-11-123. It does not make any reference to 16-11-124, nor does it have its own list of exemptions. What it does have is a fixed penalty of 5 years. No range of possible sentences, just 5 years in prison. Period. So, if 5 years is the penalty for violating 16-11-123, what is the penalty for violating 16-11-122? Or is 16-11-122 a mere declaration of public policy or legislative intent, rather than a Code section and subsection that actually creates a crime? Note that it doesn't start out with the same language announcing the creation of a crime. It doesn't say "don't do this or else..." It just says "don't do it." Finally, I suppose as long as your NFA / class 3 / Class III weapons are registered with BATFE, you're covered by the exemptions found in 16-11-124, because that subsection says that it applies to "This Part", and Part 2 of Article 4 of Chapter 11 of the code includes 16-11-120 through 16-11-125. But IF somebody possessed an illegal sawed-off shotgun, what would be the proper Code section to charge them under, and what would be the penalty prescribed by law?