Also the "enhanced sentencing for use of AP ammo" is a Trojan horse akin to "hate crimes" or "hate speech" legislation. The Feds just love "sentence enhancers". That way, they can ignore these laws until you become a person of interest to them. Then if they want to put the heat on you to become an informant or whatever, they can just look around your otherwise legal and uneventful life and find all sorts of potential reasons to put you in prison for years. "Hey, looks like this guy owns a rifle with a bayonet lug, and some surplus Chinese ammo. He's in the bag! He'll do anything we want."
The term is quite useful for just that reason. Bureaucrats, BATFE and otherwise, as well as gun-control advocates and their media co-conspirators can apply the term "AP ammo" to any round that they can demonstrate to pierce body-armor. As you've seen testified to on this thread that covers virtually all centerfire rifle caliber hunting ammunition.
The smallest (or least powerful) small arms ammo that the military designates as AP is 30-06 as far as I know. It is not designed to defeat body-armor since even a pure soft-lead slug in 30-06 would do that quite nicely. It is designed to pierce the steel plated armor of combat vehicles and break down concrete block walls. True AP ammo offers no advantage in killing a man with body-armor on and is arguably less effective because it would travel clear through the body without expanding. IOW's deer hunting ammo is more lethal on a man wearing body-armor than true AP ammo. But that's not what they're going to be looking at is it?
Looks to me like they are trying to placate the Democrats into passing the Gun Manufacturer protection.
The 'gun locks for handguns' addition is a 'gimme' to placate the gun grabbers. It stinks because it raises the price of buying a gun but since using it isn't mandatory (AFAIK) it doesn't automatically endanger the gun owner. But banning any type of ammunition is not a compromise it is an infringement and an assault on weapons possession itself.