Yes they are fairly consistent
Your question is a oxymoron. Pneumatic BB guns are single shot. Machine guns are Multi shot. There are several C02 driven BB machine guns
No not all of them are spring. Some are also pump or C02
The same as a C02 BB gun. When you pull the trigger it momentarily opens a valve to let gas fire the BB down the barrel.
No! they are powered bu Air or C02 that fires a Pellet or BB but NO gunpowder is involved. Hence they are called "air guns."
Yes. If it's an airsoft it will sting. If its a BB gun or pellet gun it can penetrate the skin and do damage to a person.
Air sport guns & rifles are not firearms but they do shoot BB's or Pellets. Most people call them BB guns. It's a general term meaning any gun or rifle that uses air or C02 to fire a projectile like a real firearm, is an "Air Sport Gun." The term can reffer to: BB / Pellet guns Airsoft guns Paintball guns
There are air rifles and there are air guns. These are guns that use air or C02 to fire a BB or Pellet, not gunpowder. A DAISY RED RYDER BB Rifle would be considered an "air rifle." There are several companies that make air guns and air rifles. Gamo, Daisy, Crosman, and Umarex are a few of these companies.
I assume you are asking about BB guns not Air soft guns. There are a few that fall under $50 but they are C02 not spring powered. Marksman makes a line of spring pistols under $50 but they are terrible and not worth the cost. See the link below for C02 air guns.
H20 means Water. I do not know of any Water BB guns. Now if you are asking about a C02 ( Carbon-dioxide ) BB gun then that is something else. I would start with asking the question by naming the model of the C02 gun you want to know about, then it might be possible for you to get some help.
Semi auto air guns are driven by C02 gas. when the trigger is pulled some of the C02 not only fires the projectile but drives gears that get the next pellet or bb in line to fire the next projectile.
BB guns have 3 different power plants. Spring, C02 and Pump. 1. Spring power: When the rifle or gun is cocked a spring is compressed inside a piston and released when the trigger is pulled. The piston pushes air ahead of it forcing the BB to fly out the barrel. 2. C02: C02 gas is contained in a cylinder. when the trigger is pulled a burst of C02 gas is released and forces the BB out the barre 3. Pump: When the rifle is pumped using the forearm, air is stored in a cylinder inside the rifle. when the trigger is pulled the air is released forcing the BB out the barrel. There is one more power plant but it is used in High power air rifles and guns only and that's PCP. Air is introduced into the rifle with a scuba tank taking the pressure up to 3000 PSI and is used to power the rifle for several shots.
It is a system that uses C02 or green gas to fire the BB out of the gun