Well if its for survival purpose I would be thinking how I could fill it on the go!! And I would say HPA would be better as you will be able to do so. And a stirrup pump for a PCP air rifle will do the job. My old armed forces backpack holds my PCP air rifle one side and pump on the other. And I don...

Epoxy is strong no denying but but it can't chemical etch to metal because metal is not pourous . Also epoxy only gains strength when glass matt or fibre is introduce, over wise epoxy is weak brittle. All I was saying is their are better ways !!! also if you dont have the proper tools I do not sugge...

Personally I think HPA is better than CO2, HPA is less affected by temperature.
Plus if your short on money you can fill them at home easier.

if its just gunk then i would use a degrease spray or white sprite and wipe clean with a cloth

New milling vice has come but still cant use it, the one bolt i need i no longer have laying around have to get a couple tomorrow if possible. So i have done what i can on it and got some more pics to share. Main mag well with M4 stubby mags http://imageshack.us/a/img27/3823/119xaz.jpg http://images...

I have a three way on mine mainly because I like the idea of getting semi auto its just rigging the feed that's the issue.
Mag, feed, bolt and air tight are 4 things that are rattling my mind and build so far.

Lol any excuse for a shopping spree.

How much, is that how much you pay for a qev.
The next part of my build is a barrel and bolt set up I like how your done the internal slider I might try and incorporate it in to my design.
Nice work a shame you hit a glitch.

I'm going to look out for some Boston liquid sealant and give it a go, sure I will find some on eBay only thing is I have about a 1000 meters worth of Teflon tape lol.

2 generations of spudfilers lol, 13 unlucky for some but not me.

Thought I post a pic up of me, of me and my son

Like CS has posted only way you will get a air tight seal able to handle compression is going to be with tools. I use 3 wrap arounds of white PTFE tape then crank it as tight as possibly prefect seal no leaks. Even if you coat them in jb weld or epoxy which I would not recommend it won't have enough...

Taking Airsoft to the next level lol.

Thanks jack, Got the aluminium for my inner barrel and its perfection lol, the inner diameter is actually centred with equal thickness all the way round so start working on that soon. Got a slight set back as my small milling vice broke on me today, so gotta source another one currently with empty p...

Well the inner bore was not centre, so the wall thickness was not equal all the way round when I bored it out to the required diameter I test fired it a couple of times and the wall split