Pistol/revolver [empty one] you can pistol whip with, and it has no bullets, what is the crime?
Depends totally on both the circumstances and the state. If the use of the pistol as an impact weapon is judged to be self defense-no crime.
If it is judged not to be self defense then let's see: assault, at least, if not aggravated assault. Brandishing in many states. Here in Georgia, we don't have a brandishing statute. However, there is a law against pointing a firearm at another without legal justification whether loaded or unloaded. It's difficult to pistol whip someone without covering them with the muzzle at some point in the proceedings. Will probably damage an expensive pistol, too.
Check with your state's attorney general about impact batons. Also ask if the statute states a brand such as ASP and if other brands would be considered OK also.
The ASP, a JShirley stated, is legal to carry here in Georgia
with certified training. I'm pretty sure that it will be specific to the ASP brand and you could get into trouble if you ran into a situation where you had another brand and ASP certified training with the wrong officer.
If certified training is required then keep a copy of that certification as well as a copy of the letter from the AG OK'ing the carry and use close at hand. If it's legal in your state, don't depend on law enforcement to know the law. It could very well lead to more hassle than you want to experience.
Open carry of pistols is lawful here in Georgia if you have a concealed carry permit. A permit holder in Richmond County recently had his openly carried pistol seized by a Richmond County sheriff's deputy. First the deputy checked the serial number to see if the pistol was stolen. Then he required the man to provide 'proof of purchase' before returning the man's pistol.
I don't keep 'proof of purchase' receipts for most of my firearms as most have been in my possession for ten years or more.
The deputy then claimed that open carry is not lawful in Georgia which is completely false.
Georgia Carry.org is involved in the matter and will probably wind up taking the sheriff's department to court. Big darn hassle and I think I'll write the Attorney General to get his opinion on the lawfulness of open carry on AG letterhead. I don't open carry often but I recently ran into an officer whose problem with my firearms wasn't that he didn't know the law for he obviously would have arrested me if that had been the case. His problem was apparently that he didn't
like the pertinent laws that allowed me to conceal carry and to have a loaded AR15 in my vehicle.