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Plans for homemade airrifle

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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Plans for homemade airrifle

Unread postAuthor: jaffe » Tue Jul 24, 2007 5:31 am

I'm planning to build a simple air rifle that looks like a M4 with grenade launcher, the M4 shoot bolt action the grenade launcher is powerd in combustion. The problem is the loading from the gun, i think that is I yuse a spring powerd magazine the bb are pushed to hard in the barrel and wonth shoot out the barrel. Dus somewhone no what I can do on this problem or wil it yust work :D .
Geetings from the dutch, Jaffe
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Unread postAuthor: integral » Tue Jul 24, 2007 5:52 am

Maybe a sleve that acts as a bolt inside/outside the barrel that would seperate the chambered round from the spring tension applied from the magazine?
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 24, 2007 7:34 am

You could make a BBMG with a relatively small chamber, by using brief trigger pressure you can fire in short powerful bursts, without the need for a complicated magazine setup - I used this technique with my Standalone Vortex Project, as you can see in this video:

[youtube]http://www.youtube.com/watch?v=Dz5sgxpun5g[/youtube]

What are you planning on using for an air source? If you're going for multiple shots, your best bet would be a high pressure air or CO2 bottle regulated to lower pressure.
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Unread postAuthor: jaffe » Tue Jul 24, 2007 8:34 am

@Integral
I don't understandt what you mean(stupid dutch people :D ) If you could draw a schematic from the loading system I will understand it(maybe :idea: ).
The air source is from a plunger(bolt action), the trigger is yust a simple washer :D .
Greetings from the dutch, Jaffe
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 24, 2007 8:51 am

Ah, do you mean that the rifle component is shot using a spring powered piston, not by compressed air for a reservoir?
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Unread postAuthor: jaffe » Tue Jul 24, 2007 9:15 am

Yes.........................................
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Unread postAuthor: jaffe » Tue Jul 24, 2007 9:19 am

Ofcoarse I want to make a gun on compressed air, the problem is yust that I don't can make a valve that don't spill all the compressed air from the tank. And also I like triggers :D .
Greetings from the Dutch, Jaffe
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 24, 2007 9:30 am

In that case, I think you will find this link very useful ;) Ignore the complication of having the ammunition in separate cartridges, you could have the BBs feeding directly to the breech.
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Unread postAuthor: jaffe » Tue Jul 24, 2007 12:42 pm

How do you mean directly to the breach?(yeah I'm stupid :) )
Greetings from the Dutch, Jaffe
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Unread postAuthor: jaffe » Tue Jul 24, 2007 12:50 pm

I think that a hammer valve can be possible to make(a kind of).
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 24, 2007 12:59 pm

I mean the BBs are fed into a T with a spring, I'd love to be able to draw a diagram but my resources are a bit limited right now.

An easy way of making a hammer valve is taking a normal blowgun, removing the trigger then making a spring loaded hammer to strike it open - with a bit on ingenuity you can lift a hammer mechanism from a toy gun made for exploding caps.
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Unread postAuthor: jaffe » Tue Aug 07, 2007 7:58 am

The problem is that in this stupid country they don't sell blowguns valve's. I have tried to make a simple valve but it didn't work so now I'm drawing a kind of paintball gun valve, but I'm stuck by the problem that I want to make it automatic
Greetings from the Dutch, Jaffe
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Unread postAuthor: jackssmirkingrevenge » Tue Aug 07, 2007 8:15 am

I find it hard to believe that no one in Holland sells blowguns - have you been to a hardware shop that sells air compressors and accesories?
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Unread postAuthor: spanerman » Tue Aug 07, 2007 8:34 am

im pretty sure ive seen a blowgun on one of BtB's guns and hes dutch aswell! drop him a PM and ask..
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Unread postAuthor: SnowFlox » Tue Aug 07, 2007 10:36 am

jackssmirkingrevenge wrote:You could make a BBMG with a relatively small chamber, by using brief trigger pressure you can fire in short powerful bursts, without the need for a complicated magazine setup - I used this technique with my Standalone Vortex Project, as you can see in this video:

[youtube]http://www.youtube.com/watch?v=Dz5sgxpun5g[/youtube]

What are you planning on using for an air source? If you're going for multiple shots, your best bet would be a high pressure air or CO2 bottle regulated to lower pressure.



thats some serious powerfull burst yeah ! :o
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