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spring airsoft

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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spring airsoft

Unread postAuthor: nosnik » Fri Mar 26, 2010 9:14 am

ok guys! so i wanna make a spring airsoft gun and im having problems with how to cock the gun and a trigger set up .

all i can think of is a rod too pull back the spring but i want to make is much more like pull back loading system.

(not lathes or any kind of crafting tool. :'( so it would help if i could make the parts easy to build)

thanks.
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the chamber i could think off..:(
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Unread postAuthor: Crna Legija » Fri Mar 26, 2010 9:19 am

ill upp lood picks of my hammer valve tomoro, it the same set up just my piston isent air tight
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Unread postAuthor: nosnik » Fri Mar 26, 2010 9:24 am

YAY! this would be more safe to build and fire at home lol! nthing would blow up! :) thanks -_-

[edit] but i still need a way to like cock the gun.. :(
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Unread postAuthor: Hubb » Fri Mar 26, 2010 11:00 am

Look over some of the various Nerf sites. They have homemades in their, which are mostly spring guns. The same can apply to airsoft, but probably on a bigger scale.
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Unread postAuthor: nosnik » Fri Mar 26, 2010 11:05 am

man i wont go thru with all the trouble to build one if the law did not ban it >_>
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Unread postAuthor: SEAKING9006 » Fri Mar 26, 2010 11:33 am

The sheer scale of linguistic butchery in this thread tears at my very soul.

Anyway, I don't see anything here that says airguns are banned. You should be fine. As for cocking the piston, you could try using a one piece trigger and sear with a tab on the piston to engage the sear, and have the piston tube slide rearward inside the gun to pull back the piston. As for ease of build, you will need tools. You really can't get around it. A hacksaw and a file is the bare minimum you will need, but a dremel and a drill will make it far easier.
The vast majority of airsoft guns in this forum use no moving parts, and use either a vortex block or a cloud chamber (look those up on the wiki), reason being that small parts are very difficult to work with. Good luck though.
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Unread postAuthor: iknowmy3tables » Fri Mar 26, 2010 12:32 pm

like what hubb said check out the nerf haven forums for inspiration on building springers, they're same thing with a different barrel, in fact you can just buy a single shot nerf gun and hot glue a bic pun tube inside the barrel unless nerf guns are illegal too
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Unread postAuthor: clemsonguy1125 » Fri Mar 26, 2010 4:35 pm

Heres an example of the nerf gun version iknowmy3tables mentioned, this one claims to shoot 250 fps and uses a carbon fiber arrow for the barrel
http://www.instructables.com/id/nerf-gu ... -gun-250-/
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Unread postAuthor: Hubb » Fri Mar 26, 2010 5:02 pm

clemsonguy1125 wrote:Heres an example of the nerf gun version iknowmy3tables mentioned, this one claims to shoot 250 fps and uses a carbon fiber arrow for the barrel
http://www.instructables.com/id/nerf-gu ... -gun-250-/
I could see a Nite Finder getting that velocity with an airsoft round.
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Unread postAuthor: clemsonguy1125 » Fri Mar 26, 2010 5:04 pm

Ive tried thit with a bic pen and probably got around 125 fps, so I agree thats probably possible with a arrow barrel
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Unread postAuthor: nosnik » Fri Mar 26, 2010 8:10 pm

lol~ thanks gus. but im thinking of how big the chamber with the plunger has too be . and @SEAKING9006 wont the performance go down if there are two slits on the sides of the inner chamber?

[edit] then again i also have to find the spring :/
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Unread postAuthor: jackssmirkingrevenge » Mon Mar 29, 2010 12:43 am

have a look at this project ;)
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Unread postAuthor: SEAKING9006 » Mon Mar 29, 2010 11:27 am

No, it shouldn't. Take a look at the clear plastic spring pistols next time you go to walmart. Nearly every production uses thish scheme. The sear catch is near the rear of the piston, and the piston tube doesn't need to move far to engage it. There would only be one slit, behind the sealing face of the piston so it wouldn't affect performance in the least.

I'd suggest researching this further before you build anything.
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Unread postAuthor: nosnik » Sun May 02, 2010 9:51 am

i dont even live in a country with a wall mart .. :/
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Unread postAuthor: Gaderelguitarist » Sun May 02, 2010 10:13 am

http://boltsniper.com/BS-6/BS6.htm

Here you go. The concepts are so similar that all you need to do is buld the same thing with an airsoft barrel. He also has a lot of magazine feeding going on in some other projects, so you might want to check those out too.
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