My idea was constant air flow, regulated to 300 PSI. When the bottle is finished - I buy a new one (they're awfully cheap here, around $12~$15). I think I can get a pretty decent amount of shots from such a big tank, as I get about 5 consistent shots at with a 12g CO2 cartridge, 750-ish FPS.

The ...

Yes, I want the supply to be placed exactly as you can see in the picture. I am removing a part of the stock and placing the CO2 there (like many manufactured airguns do). I am thinking about maybe getting a short tube that will connect to the schrader valve.

EDIT: How much pressure is the ...

I'm having a little trouble understanding so I'd really appreciate it if someone could help me over Skype before I place a $100 order.
Anyone willing to volunteer for 5 minutes? I will show you on webcam exactly what I need just to make sure.

you can get the adapter from palmers too and it's 40usd..
http://palmer-pursuit.com/cart/soda-stream-course-thread-bottle-adapter-p-1102.html

Oh and the female stabilizer is ok, I have one that goes 0-200psi with remote+gauge :)

So in order to accomplish what I need, which parts do I need to buy ...

Hey guys,

This is my current build of the air gun:
5mm ID of barrel.

http://oi44.tinypic.com/2vuy3ya.jpg

Getting about 740 FPS+- (chronied with sound and good mic) at 300 PSI with this.

Damage:

http://oi41.tinypic.com/10xxb0m.jpg

Build goal:

http://oi44.tinypic.com/28wmof7.jpg

Now, I ...

I personally bought a pretty cheap one so it closes and opens easily with a knob (the red twisty one). I bet you can find fixed regulated ones on eBay, but they cost quite a bit more than that simple $15 one.

I personally love coaxial designs, I made my own gun a coaxial. I've also experienced a problem many complain on coaxial designs - that they are single shot. I found a really simple solution for that using 16g CO2 cartridges and a cheap CO2 regulator (2 bottles, 1 regulator for $15..). Assuming you ...

Hi guys,

As promised, here is my finished gun including some process pictures (final results at the bottom).

-----------------------------

Before:

http://dl.dropbox.com/u/43457305/air%20gun/20130207_115707.jpg

http://dl.dropbox.com/u/43457305/air%20gun/20130207_115733.jpg

http://dl ...

Is it a coaxial airgun? just asking...

Yes it is.
After finishing this gun completely (probably next week, when all the parts arrive from eBay), I plan on making a new bullpup, semi-auto with a QEV I bought.

EDIT: Didn't see the edited post. I will take proper pictures tomorrow probably.. If you ...

MAN I love eBay! Just ordered some 6mm brass tubes since the smallest diameter I could find in this entire country was this 8mm and that was only because I found it from a scrap lamp post (go figure..)

Regarding the pressure, I am now buying a small compressor which will go 200~250 PSI

If it's one of these, save your money.

[img]http://i00.i.aliimg.com/photo/v0/442904640/12_volt_car_air_compressor_mini_air.jpg
[/img]

Get one of these instead: http://www.ebay.com/itm/Bicycle-Bike-Alloy-Floor ...

pretty neat gun and amazing wood stock for sure,GREAT JOB.

so its 6mm barrel if i not wrong , and you have plans to use MOAR pressure in that piece ,about 400 psi ?

Unfortunately I currently have only an 8mm barrel. I plan on getting a 6mm to fit inside it / change it completely so I can get the ...

Brian the brain wrote:I want my stock back...







Good job!

May I suggest the addition of a triggerguard?
I'm sure you'll find something to use..

Good suggestions, I'll see if I can find anything that looks good. Thanks!

Thanks for the kind words CS!

To jack:
I personally don't like thumb holes, that's why I went for free handle design. I really liked his staining though, I'll look into staining mine more or less the same tone.

Shame about that scope mount.

There are neater alternatives that are quite cheak off eBay:

http://www.ebay.com/itm/Barrel-Mount-Bracket-25mm-Fit-For-Laser-Scope-Torch-Gun-/121051840245?pt=LH_DefaultDomain_2&hash=item1c2f407ef5

http://www.ebay.com/itm/1-25mm-Ring-20mm-Mount-with-Weaver-Rail-for ...