How to Empty a Co2 Airsoft Pistol

HFC M190 dual-gas pistol (March 2007)

by Tom Gaylord
exclusively for PyramydAir.com. Copyright © 2006 All Rights Reserved

At the finish of this article, at that place's a short video that shows the fast-action fun you'll have with the M190 Special Force pistol by HFC. You'll come across how the blowback operates and how accurate the gun can exist. Also, you'll meet the magazine being filled with green gas.

A realistic gas-powered airsoft pistol that offers something more

Gas-powered airsoft pistols are neat because they are frequently the closest copies of the firearms they mimic. That's the case for the HFC M190 airsoft pistol, but this gun offers something more. It operates on BOTH dark-green gas and CO2! That tin't exist said about very many airsoft pistols.

Green gas and CO2
Green gas is a relatively low-pressure gas that comes in large bulk cans. Information technology must be fed into the base of the airsoft gun's magazine through the steel probe atop the can. CO2 cartridges are small metal capsules than usually fit inside a gun. In the M190, they fit within the magazine.

Green gas

Green gas is a depression-pressure propellant that develops about 115 psi, depending on the temperature. It acts like a refrigerant, similar to CO2, simply develops ane-seventh the pressure level. There are other kinds of gas propellants such every bit red gas, only green gas has become the No. 1 gas on today's earth market.

CO2

Carbon dioxide, which is CO2, of course, has been powering airguns for more than 125 years, simply its use in airsoft guns is very recent. This refrigerant gas develops 853 psi at 70 degrees F, so it cannot be used with the same valves that dark-green gas uses. Everything has to be dissimilar, and the CO2 valve has to be controlled then that not too much gas gets through with each shot, because a little goes a long way where plastic airsoft BBs are concerned. Also, in pistols such equally the M190, the slide blows dorsum with every shot. If there's besides much gas pressure, the metal parts will hammer themselves from the excessive force.

What's this airsoft gun'south secret

So, how do yous make the same airsoft pistol operate on two very different gasses? The reply is in the valving. That's why there are ii very unlike valves for this pistol and 2 unlike magazines to hold them. The green gas mag is smaller considering green gas is filled direct into a small reservoir in the base of the magazine. The dark-green gas bottle has a probe that is stuck into the gas port on the bottom of the inverted magazine, then the gas bottle is pressed down to permit the gas to menstruum. A completely empty mag may take several ii-second shots of gas before information technology starts bubbling out the gas port, just a magazine with some gas in information technology commonly needs only one two-second shot to fill up it. One fill lasts for ii magazine's worth of BBs, then you make full with gas, then load the first set of Bbs, shoot and load a second set of BBs to shoot again.

Filling a airsoft pistol magazine with green gas

When filling a mag with greenish gas, the gas bottle is held above the inverted mag to drive liquid propellant into the reservoir.

Green gas mag

A full light-green gas magazine holds 27 0.20-gram 6mm Bbs. They align in what is known as a double stack - the same equally 9mm cartridges align in the Beretta M9 magazine that this copies. Double-stack magazines hold more ammo in a shorter space, but they are wider than single-stack mags, which makes the grips of the guns that have them wider. The Beretta 92 has a very fat and boxy grip that will feel practiced to larger hands and somewhat oversized to an average mitt.

There is no speedloader for this magazine, so the Bbs are put in 1 at a time. You lot pull down the spring-loaded follower with the pollex of one hand and load the BBs into the magazine mouth with the other. The secret to not having voids in the double stack of BBs is to lower the magazine follower slowly as you load, and then there's only enough room for the next BB to enter.

By staggering the BBs, the magazine holds many more than, still it too has to be wider. A broad magazine leads to a pistol with a wide grip. Both green gas and CO2 magazines are the aforementioned width.

CO2 magazine

The CO2 magazine is longer, hanging downwardly below the grip when in the gun, the same as a high-chapters firearm magazine. The extra length is to accommodate a 12-gram CO2 cartridge, just information technology also ways the magazine holds 38 Bbs in a double stack. And, the CO2 gas is used and so sparingly that you'll get virtually 75 shots earlier needing a new cartridge. Every bit with the light-green gas mag, the Bbs are loaded singly.

The gun comes with just one magazine, merely you can purchase a spare of the aforementioned type or the other type at whatever time and simply commencement using it. Because everything you need is housed in the magazine, there's zippo to change on the gun, only sideslip in a magazine of either type and commencement shooting.

How does the airsoft pistol perform?

You lot might exist tempted to go after that extra velocity, just I saw a distinct departure in accuracy betwixt green gas and CO2. The pistol is rated for 0.20-gram Bbs, and with them I could become a 3/four" grouping of five shots at xx anxiety when shooting with light-green gas. On CO2, the groups opened upward to 2.5" at the same distance. The recoil, which was light on greenish gas, was sharper and quicker on CO2.

Target
The pistol shoots tight groups at 20 feet when using the green gas magazine and the correct ammunition.

I thought using 0.25-gram BBs might exist the reply, but they didn't group any meliorate. I recollect the greater recoil might be a problem, just you certainly want to use the light-green gas magazine when you desire the best accurateness.

I chronographed the gun on a 60-caste day. Green gas was very consequent at an average 284 f.p.s., and CO2 was a fleck more random at 340 f.p.s. Of grade, every bit the temperature climbs, velocities will, besides, with both gases.

Experience the weight!

HFC hit the nail on the head with this gun. It'southward all-metal, so the weight with the loaded and charged greenish gas magazine installed is exactly a hefty 38 oz. With the heavier CO2 mag on board, the weight climbs to 45.1 oz. They copied a proven Tokyo Marui design, simply opened the port on the dark-green gas mag to get actress operation. The gun is rated to 310 f.p.due south. with 0.20-gram BBs and probably reaches it on a hot day.

Trigger and operation

The airsoft pistol was faultless with both magazines. Firing single-activity, you notice a long start stage followed by some creep in the second. In double-activity, you take a trigger-pull then low-cal and smoothen yous'll think the gun has been to the tuner, only no tuned pistol I ever shot had a trigger so light.

Blowback was also without a flaw, and I never saw a double feed or a jam in the approximately 300 test rounds I fired. I take besides played with the gun outside the examination for another 300-500 shots and, over again, no jams or double feeds.

Controls
The ambidextrous rubber applies easily, but it doesn't drop the hammer like you might expect. Instead, it disengages the trigger. It worked reliably throughout the exam.

The drop-gratuitous mag release on the left side of the grip operates exactly like the one on the firearm, only this one is both easier and faster! Of course, its placement makes this pistol favor right-handers, only so does the Beretta it copies.

When the final BB is fired, the slide remains open up, just like on the firearm. That means you cannot function-burn down the gun with gas and no Bbs to spotter the blowback. The magazine must be loaded. The slide release is located on the left side of the frame and can be operated by the thumb of the shooting hand without irresolute your grip.

1 final control is the disassembly pin, which operates exactly like the Beretta's. If you watched Jackie Chan in the movie <i>Rush Hour</i>, you may accept seen him instantly field strip the gun with one hand - something that soldiers might like, just police force enforcement officers probably don't. However for airsoft shooters who might have to clear a jam or just want to see the inside of their gun, it's a great feature.

HFC M190 disassembled
The Beretta 92 is one of the easiest autoloading pistols to field-strip, and the M190 follows suit with the exact aforementioned disassembly pin!

Hop Up
The M190 has Hop Upward, but information technology isn't adjustable. That'southward why the use of the correct armament is so important.

Summarizing the HFC M190 Special Force

This is a lot of gun for the money. Add to that the dual power sources, and yous have a real winner. If you want a fast-activity airsoft pistol, check out the HFC M190 Special Strength!

Click the play button below the video to start it. Brand sure your speakers are turned on!