Author's posts

Apr 13

CO2

CO2 is very powerful (even more powerful than Top Gas). Although it requires a special cylinder/piston combo to house the cartridge, it is highly portable and exchangeable. In fact, the cartridge has a size very easy to fit into the rifle.

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Apr 13

Red gas

“Red Gas” is even more powerful than the Top Gas. It is “red” because the container can has a red color. This gas offers very high pressure and is NOT suitable for most off-the-shelf gas guns. It is all about gas pressure. Those more powerful gases offer very high pressure which could be unsustainable by …

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Apr 13

Top gas

Top Gas is way more powerful than the 134a and is capable of delivering 280~360fps given proper gun design. Most Taiwanese gas guns have been reinforced to tolerate and take advantage of the high pressure provided by Top Gas. The problem is, the gas is not portable due to the lack of a cartridge format.

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Apr 13

Green gas

“Green Gas” is “green” probably because it is said to be more environmental friendly. In fact, in some Asian countries the 134a is being referred to as green gas due to its environmental friendliness. Anyway, to avoid confusion, we prefer to use the names ET-1000, Top Gas and HFC 22 instead.

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Apr 13

How gas pistol works – II

CO2, 134a and green gas (i.e. Top Gas in most countries) are the most popular types of gas in use today. The gas is either injected into a reservoir chamber (termed pressure accumulation chamber) within the magazine or attached to an exterior assembly containing the gas canister and an expansion tank. By pulling the trigger, …

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Apr 13

How gas pistol works

Before you pull the trigger, the piston is at a position where its valve is blocking the passage between the lower gas passage and the connecting gas passage. The valve is supported by a small spring. You pull the trigger, and the hammer hits the head of the movable pin. The movable pin hits the …

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Apr 13

Ball valve

A few very-high-end guns (gas guns and paintball markers) use ball valve, which is sort of a one-quarter turn valve. It has quite literally a ball placed in a passage through the gas flow. The ball has a hole through it, which is for opening and closing the valve. When the hole is running in …

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Apr 13

Origin of modern gas guns

Many of the modern gas gun designs are based on the early invention of Gale in 1957. In fact, Gale’s invention was for a CO2 powered gas gun, which was granted a patent in the US (US Pat # 2,817,328). Most modern designs have small details totally different from Gale’s work. However, Gale’s design is …

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Apr 13

AEG motor break-in

The best way to gain power from a motor is to properly break-in the motor brushes and the bronze bushings. You want to first break-in the brush/commutator interface so that the brushes can conform better to the shape of the commutator. To do so is easy – just run the motor on 4 cells (1.2V …

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Apr 13

M4 motor installation

When inserting the motor, make sure the POS side stays on the side closer to the trigger. The NEG side, on the other hand, should stay close to the rear end. Carefully arrange the wires, then install the end cap and put in the motor position adjustment screw. A quick test can then be performed …

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