Automatic firearms work with a kind of "manual conveyor belt" mechanism. Tapping the trigger will fire a single round, akin to semi-auto fire. Holding the trigger activates a small set of gears that turn at a remarkable rate, ejecting an empty shell and replacing it with a fresh round at a continuous rate. Semi-auto doesn't have that same mechanism, or it is rendered inactive in semi-auto fire mode. The rate of fire is determined by how quickly multiple rounds are shot, or how quickly the gears turn. Examples of auto fire weapons are the SAW and M4A1, the latter having a semi-auto fire option.
Yes, with the very few exceptions of certain older automatic mechanical guns.
In Canada, the kinds of guns that shops are allowed to carry for sale are only hand guns and semi-automatic guns. Fully automatic guns are not allowed to be sold.
Automatic Electric Gun - i.e. airsoft toys guns.
No dials on automatic guns.
Yes, a few. But they are low quality guns.
Depends on what you mean by automatic guns, and the law where you live. You did not tell us where that is, so there is no way we can answer. Where I live you CAN legally own fully automatic firearms (machine guns) but they are horribly expensive. An M16 rifle that may be owned by a private citizen is between $12,000 and $16,000.
Colt Automatic Rifle
Get some cannons and automatic guns
1884 for machine guns.
Yes, you can ship semi automatic bb guns to new zealand but not fully automatic ones
A rapid fire mod is a mod that makes semi-automatic guns automatic
Ranges, certain situations.