If you have never shot a paintball gun before then you may be curious about the difference between a standard airsoft rifle and a PCP airsoft rifle. The main difference is that the PCP air rifles only have a little kick and the rounds come out quickly compared to a standard airsoft rifle. Also, when you fire the PCP, you must pull the trigger immediately and this is quite a bit faster than a standard airsoft rifle. Here is a closer look at how both the airsoft rifle and PCP air rifles work.
A standard airsoft rifle will use plastic BBs (bases) to propel plastic pellets down the barrel at an accelerated rate. The reason for this is so that you can shoot several shots with each BB. You can get several pellets from each BB, but if you have lots of rounds, it can be hard to make it to your target. Airsoft pellets on the other hand use metal BBs (brassoids) instead of plastic ones, which provide a much more consistent pellet flight path and allows you to shoot multiple shots with each BB. This homepage has more details about this product, check it out.
Now lets take a look at the PCP air rifles. First, you will notice that the PCP uses a two-stage gas system instead of a single stage one. This is because a single stage system will produce a more consistent pellet feed and also the ammunition used in the PCP rifle is different than what you would use in a typical paintball game. The PCP rifles shoot out more plastic BBs and they have a lot of energy than the typical paintball rifle does. This makes the PCP air rifles perfect for rapid firing, and for use in close quarters shooting.
In addition to the two-stage system on the PCP rifles there is also the gas piston air rifles. The difference between these two rifles is that the gas piston system provides more velocity and power with a lesser amount of energy loss than the single stage gas system. These rifles are perfect for tight situations where you need a lot of power and speed, and they are also perfect for tighter groups of people and tight spaces. In a typical p is air rifles you will find that the gas piston system is located on the top of the rifle as opposed to the bottom.
We are now going to take a look at some of the choices you have for your PCP air rifles. First we are going to talk about the traditional open sight or "Bronta" sight. With this PCP style of gun you can expect a lot of accuracy, but it has a lot of recoil as well. To prevent overheating the gun needs to be held at an angle so that the sights do not need to be adjusted constantly to compensate for the recoil. Also if you are using this type of gun in a long range encounter, you are not going to be able to use scopes as you would with some of the better long range air guns out there. Since the PCP air rifles are being used to shoot people at longer distances, the scopes are not necessary.
Next we are going to take a look at the PCP gas/plastic systems. This system works in a similar fashion to the compressed air system, the only difference is that instead of gas blowing through the barrel of the pellets will be fired by a plastic cartridge. The air guns shoots a round elastic pellet that is approximately one centimeter in diameter which causes the rounds to expand as they reach their maximum velocity. After the round has completely expanded it comes back to its original shape but with a much smaller velocity.
To get more enlightened on this topic, see this page: https://en.wikipedia.org/wiki/Gun.