Convert a spring airsoft gun to full auto

  For suprisingly little money and effort, you can convert a single shot airsoft gun into a rapid fire BB hose with an insane rate of fire.

The concept is simple: put a constant supply of high preassure air through the gun, and bbs will simply follow the airflow out the barrel. This means that this gun will fire as fast as the magazine can feed.

I recommend you get the highest capacity magazine you can find for your gun. Mine goes through its 30 rnd mag in about half a second (no exageration).

Step 1: Selecting a gun

  The airsoft gun you choose for this build should have a 'T' style hopup unit. This type of hopup unit is internally shaped like intersecting tubing in the shape of a 'T' . Many spring shotguns and some low-end electric guns have them

Comments

[bendog38]

How fast do you think my 10 round clip will go through? No joke, I have a TEN ROUND pistol clip from Japan. Don't laugh at me, I am an expert at pistol marksmanship.

[hornbadoing]

if your an expert at it why are you on an airsoft gun thread isntead of a real gun one?

[bendog38]

My air soft pistol was notoriously inaccurate. I actually don't even have a gun anymore. Threw it out in favor of building lethal versions of tear gas grenades. But the pistol, I knew every way to score a hit with it. Until it got hit by a BB from my friend's gun. That made it more inaccurate and at that point I just threw it out. As for actual guns, I go with my girlfriend to a range every weekend. There is where I honed my skills with a pistol. More accurately with a .44 magnum revolver. Thing has some kick to it. So, yes, I am a pistol marksman, no I don't have an air soft gun anymore, and have a great day, Hornbadoing.

Bendog38

[Molybdenum]

I'm not sure this would work with pistol mags, but i would guess it would take about a sixth of a second to dump ten rounds.

[nerd12]

any one who has played quantum of solace in the Wii will know about the 'bomber' character that can be selected in multiplayer. his gun fires 2 shots the instant you pull the trigger and has to be slowly reloaded after that.
seems fimiliar? if you are using this you shouldl play defense. keep your gun hooked up to the pump and have a bucket of bbs nearby.

PS. this is a good idea but i think i will stick with my more controllable spring gun.
due to the pump i can squeeze out an accurate 2 rds per second.

[Molybdenum]

The purpose is more novelty than anything. If you were to actually use it, you would probably get the most out of it as a masterkey mounted shotgun. Each "shot" would require a mag change, but it could probably clear a small room.

[ilpug]

well yours should take about a tenth of a second to empty. i have made things like this that empty a full 2000 round can of bbs in like thirty seconds.

[9ofDiamondback]

Do you think you could make it only semi auto so you don't blow through a mag that fast?

[Molybdenum]

I'm afraid not. That would require a much more complex system, perhaps with some combination of 3-way valves, QEVs, and perhaps a spool valve.

[mattyc98]

thanks so much molybdenum, your idea helped me alot in a project im thinking of!

[Fudgeums]

Oh oops. I thought you meant put the air in front of the bbs and when the gas flows out, the bbs will follow the air like a magnet.

[Fudgeums]

Nice job but won't it be simpler to put the air force behind the bbs?

[Molybdenum]

um, this does put the air force behind the BBs. this is about the simplest possible design for an airgun.

[Fudgeums]

Like a gas gun?

[jhonny]

how did u paint the stock.

[Molybdenum]

White spraypaint base with acrilic paint over it, followed by a clear coat.

[chaoschao99]

how much fps does this shoot

[Molybdenum]

Depends on how much preassure you put trough it. Strangely, I found that at preassures above about 50psi, Hicaps dont feed right, but spring mags feed fine, meaning that If you want to use something like 100psi and get a higher muzzle velocity, you would have to use low/midcap mags.