Semi auto air rifle bb gun {UPDATE NOW WITH VIDEO}

[LovableAirGuns]

Hey everyone

Lately iv been working on a semi auto air gun. At them moment i shoot bbs until i get some splat balls since splat ball are pretty dear and hard to find unless you look on eBay. The gun shoots about 10psi each shot and the 1st chamber is filled to 110psi. The first 10 shots are the good after that they weaker and weaker (pointing out the obvious).
Later on im hoping to crank up the pressure and use a soda stream bottle and fill it up with air and having a high pressure hose comming from my bag into my gun and also try and make stock that looks nice
let me know if im missing out some info

Specs:
1st chamber: fire extinguisher
2nd chamber: galvinised pipe
Qev: http://www.ebay.com.au/itm/G3-8-Pipe-Pn ... 459wt_1139
3 way valve: http://www.clippard.com/store/display_d ... sku=MJVO-3
Pressure: 110psi

Pictures:

3way valve and QEV


3 way valve


Gun


Adjustable detent im working on


End cap for magazine


End cap and magazine


Receiver and the yellow bb is the detent


End cap on the magazine


[youtube][/youtube]
hope you enjoy the video

[Crna Legija]

nice, looks good, you should get a air cylinder and take advantage of the 3way.

your from aus right? how much was that mjvo-3? i would love one, i have a slide valve but they are gay.

[LovableAirGuns]

the 3 way valve is $31 its a bit pricey but it works great but i didn't buy it because a friends bought it for me
And yes i do live in Aus

[POLAND_SPUD]

get a air cylinder and take advantage of the 3way

POLAND_SPUD approves

consider putting the air reservoir in a back pack

[LovableAirGuns]

i would use a air cylinder but im worried about it popping the paintballs (splat balls) since its got threads on the rod :/

consider putting the air reservoir in a back pack

Thats what im going to do when i get a hose to connect it

[/quote]

[daniel0663]

Nice build man, Got a estimate speed on those bb's?
also how much does that thing way...
Must be heavy. :tongue5:

[LovableAirGuns]

Nice build man, Got a estimate speed on those bb's?
also how much does that thing way...
Must be heavy.

it is actually very light, lighter that i thought it would be and estimate on bbs i dont know but shooting 10m away from a fence it takes about half a second to reach the fence from 10m away

[LovableAirGuns]

Sorry for the double post but with air cylinder wouldnt it pop the paintball since its going to push it really fast?

[Gun Freak]

it is actually very light, lighter that i thought it would be and estimate on bbs i dont know but shooting 10m away from a fence it takes about half a second to reach the fence from 10m away

20 meters/second
Gun looks really nice... I want an mjvo-3 lol

[Crna Legija]

Sorry for the double post but with air cylinder wouldnt it pop the paintball since its going to push it really fast?

If you smooth of all the edges, don't blast the trigger at full rps and get a pressure reducing fitting on the air cylinder (i have one input is 600 output 35psi) to stop the air cylinder crushing shit(at 600psi my shatters marbles no jams tho lol)

I think the could make it. or you could make cartridges(more like shields) for them out of like 1/2'' PVC.

can you ask your mate how/where he got it?

[LovableAirGuns]

20 meters/second
Gun looks really nice... I want an mjvo-3 lol

Haha you should there GREAT!

If you smooth of all the edges, don't blast the trigger at full rps and get a pressure reducing fitting on the air cylinder (i have one input is 600 output 35psi) to stop the air cylinder crushing crap(at 600psi my shatters marbles no jams tho lol)

I think the could make it. or you could make cartridges(more like shields) for them out of like 1/2'' PVC.

can you ask your mate how/where he got it?

I might do that just smooth out all the edges and stuff but still wondering if u should shoot bbs or splat balls, splat balls are fun and not dangerous as much as bbs but bbs are easier to find, cheaper and more fun than paint balls so i might go with bbs using my gun since there more fun than paint balls

Im not entirely sure on what he did but i think he ordered it of the web site but we had to go pick it up since it would be cheaper but wouldn't much of a price change but we had to get some fittings from there so its worth the pick-up but the guy there was hell sus he kept asking what we where making it for and we said it was for some vacuum casting thing so yea.
but you can get it posted to your house i think.

[Crna Legija]

Im not entirely sure on what he did but i think he ordered it of the web site but we had to go pick it up

where did he order?

but the guy there was hell sus he kept asking what we where making it for and we said it was for some vacuum casting thing so yea.

lol just say your making a pneumatic can crusher for school

[LovableAirGuns]

My bad but i think you have to call :/
these people are located in Adelaide and here is the link: http://www.pneucube.com.au/index.html

lol just say your making a pneumatic can crusher for school

Im gona use that next time

[Crna Legija]

My bad but i think you have to call :/
these people are located in Adelaide and here is the link: http://www.pneucube.com.au/index.html

Thanks!!

[jazzman56]

Hey where can you get the galvanized steel pipe ???? I've looked everywhere and bunnings don't seem to have it. Maybe i'm looking in the wrong section, any ideas.