I take a guess at this: If you're referring to 45 GAP, the term GAP stands for "Glock Automatic Pistol."
Probably. It would likely refer to a handgun that fires a .45 caliber ACP, or .45 GAP or an older .45 caliber revolver round.
It depends on the state, and on what you mean. If you mean a license to carry a handgun, most, but not all states require you to be at least 21.
It depends on where you are, and what you mean by "licensed."
357CTG means that particular handgun is chambered for the 357 magnum cartridge.
what does it mean to have 19.3 Anion Gap
gap btween legs
Assuming you mean a bullet fired from a .22 caliber handgun, the answer is, yes, it can, but it depends on several variables.
It depends on what you mean. If you mean legally, it depends on the state. Some states require a handgun to be carried in a holster, but most don't. In Tennessee where I live, if you have a handgun permit, you can carry the gun any way you choose. Otherwise, you basic options are, holster or not in a holster.
a gap
It depends on whether you mean legally, or what is the biggest handgun available, and whether you mean handgun size, or caliber size. The largest commonly available caliber is .45 ACP, however, .50 AE is also fairly common. That said though, there is also a handgun available in .600 NE. Most states don't have restrictions on caliber, however, some may.
Its the gap between the actual and potential GNP
It depends on what you mean. 1. If you mean semi-automatic (sometimes referred to as automatic), it means a handgun that auto-loads the next cartridge in order to fire it, but fires only one cartridge for each pull of the trigger. 2. If you mean a full auto, it means a handgun that will continue to fire as long as you hold the trigger, or until it runs out of ammo.