New TM G17 Magazine Leaking

[welchyd1]

I bought a nearly new TM G17 from this forum which came with one magazine. When I cocked it and fired the trigger it had gas in it. After a few shots it was empty. I've tried to fill it with a bottle of Nuprol 2.0 gas and it just spits it all back out in my face. 

Any ideas what I'm doing wrong? 

I've got a few WE mags for my WE 26c which appear to have an oring in the fill valve but the TM one doesn't. Is this normal? 

 

[Guest]

All TM mags do that, it’s actually air in the mag that is coming out (or should be) not  propellant gas.

You can fit an o ring from Lees Precision Engineering and it won’t spit air out

 

[welchyd1]

But after an attempted fill and blast in the face, the mag is still empty. 

 

[Guest]

You have to be precise with the gas canister as there is no o ring, perfectly vertical in relation to the mag 

 

[RR01]

And you fill it inverted, i.e. with the fill valve up and the canister pointing down.

 

[T5dogz]

I solved my mag by putting the tiniest rubber o rings I've ever seen all sorted 

 

[P13]

Huge pain in the arse to get the o ring in though ha 

 

[Guest]

Huge pain in the arse to get the o ring in though ha 

I use the cut-off top of a gas canister, works perfectly ??

 

[P13]

I use the cut-off top of a gas canister, works perfectly ??

This is because your a clever fella and I’m a struggle and grunt kind of guy