Gas does wha?

ScumLord

I'm a bit confused by some talk I hear about gas pistols. I've heard people say that different gas can give the gun a more powerful shot but I thought that the gas pistols work on the same basic principle as the spring loaded guns, in that you load the spring and it fires the pellet. I figured the gas was just used to cock the gun but had nothing really to do with firing the pellet.

Can you fire a gas pistol without gas? Cocking it manually.

Mark_Sc

No, with gas guns the gas fires the bb, moves the slide backwards and propares the gun to be fired again. This way you get a slight recoil effect and the gun can be fired again and again untill the gas runs out. The gas propells the bb... are you familiar with the way apintball guns work? its pretty much the same way

Dave!

I'm not sure, but as far as I know it's to do with the amount of pressure that the different types of gas can undergo. If they're under greater pressure, then when the gas is released (bit by bit), it produces a greater force, which pushes the BB out.

There's no combustion or anythin, it's just pressure.

ED E

Wiki: (Enjoy)


Gas-powered airsoft guns use pressurized gas to propel pellets. They can hurt more than the other guns can. These guns are capable of automatic and semi-automatic operation. The most common gases used are "green gas" (which consists of a mixture of propane and a polysiloxane lubricant) and HFC-134a. Less commonly used gases include "red gas" (which is actually HCFC-22), CO2 and nitrogen/high pressure air. Red gas is usually avoided unless the airsoft gun has undergone modification, as its relatively high critical pressure can cause damage to the airsoft gun. CO2, nitrogen, and high pressure air are less common because they need to be stored at higher pressures than "green gas" or HFC-134a.

The first ever gas powered airsoft guns were commonly referred to as 'classic' guns, owing to their age. These guns were most commonly powered by liquid propellants such as R-12 (Which was marketed by the Japanese as FLON-12 or brand name Freon-12) freon feed system with a majority of the configurations containing two tanks, one containing the R-12 and one used as an expansion tank, and the gun itself. R-12 was commonly used in car air conditioning systems. It is also illegal in some states and parts of the world because it is not environmentally friendly. Later users modified these old guns to be powered by regulated CO2 canisters or nitrogen/high pressure air bottles to increase power and consistency. However, these guns have largely been superseded by the newer and more versatile AEGs, or automatic electric guns. One of the reasons for this is because the most commonly available propellant, R-12, is costly. Additionally, at high flow rates, liquid propellants tend to cool down, eventually freezing. As cooldown progresses, the rate of fire gradually decreases until the gun ceases operation. The user would then be forced to wait for the propellant to warm up again. CO2 is not affected as badly by this tendency, and nitrogen/high pressure air is immune to it. Furthermore, if liquid propellant is introduced into the gun's mechanism, rubber parts can freeze and eventually damage the gun.

Gas power tends to be used in airsoft pistols where size constraints make electric-powered mechanisms impractical. Other instances where gas is favored are where adjustable velocities are required or where a blowback feature is desired. A blowback feature is a mechanism which cycles a slide or bolt to better simulate a real firearm's operation. Because of the mechanical complexities involved with distributing and regulating gas, these guns have largely given way to electric guns for less specialized applications, however, they still remain a favorite amongst airsofters and no competitive airsoft game is ever complete without a 'pistols-only' match. They are not just limited to pistols; submachine gun airsoft replicas and sniper rifle airsoft replicas commonly use gas mechanisms. Whilst the submachine gun replicas typically feature a blowback mechanism similar to the pistol replicas, sniper rifle replicas usually omit the blowback mechanism in favor of reduced recoil and increased muzzle velocity.

Along with using gas to power guns, it is also applied for use in replica grenades. These grenades are both projectiles, fired from a grenade launcher such as the M203 or GP-25, or throwable. The shells work on the system of an internal piston, filled with gas. Either a series of BBs or in some cases a rubber or soft foam head is seated in or on top of the shell. When the pressure is released the projectile(s) are shot from the launcher sent downrange.

In the case of the throwable grenades, inside the grenade there is a similar piston to the one used in the shells, but is on a literal "timer" that allows the user to clear the area of effect. BBs or powder act as the projectile in the case of these grenades. Currently both types of grenades are not very common, mostly because grenade launchers are quite expensive and the throwable grenades are not very reliable

Irish Trinity

and make sure to get the one which soots the weather theres a winter and a summer one i used the summer one in in winter and it looked like it exploded

Harekin

Looked like it exploded? A summer one in winter would be rubbish...

kdouglas

er? what looked like it exploded? your pistol or the gas canister?

Harekin

Ahh I think maybe he means it vented all the gas on the first shot cos it wasnt powerful enough to fire it...only logical thing I can think of!

ED E

Harekin wrote:

Ahh I think maybe he means it vented all the gas on the first shot cos it wasnt powerful enough to fire it...only logical thing I can think of!

I concur.