Kwa USP .45 (GBB) magazine problem

[TheSpectre]

So I recently bought a KWA USP .45 and when I first fired the gun I could shoot all the bbs from both magazines fine but today when I went to a skirmish I could shoot 5 bbs from the gun then the magazine would just have zero gas left it was also the same on the other magazine I own and since I'm kinda new to the sport i don't know what is happening to them

[Esoterick]

It could be that the mags are leaking. Easiest way to check would be to listen for a faint hissing sound(right after filling it with gas) and also compare how many shots you get out of a mag if you fill it up and fire it immediately vs leaving it filled up for a couple of hours before using it.

[TheSpectre]

It could be that the mags are leaking. Easiest way to check would be to listen for a faint hissing sound(right after filling it with gas) and also compare how many shots you get out of a mag if you fill it up and fire it immediately vs leaving it filled up for a couple of hours before using it.

I just refilled them to see but there seems to be no hissing sound

[K@rl]

What gas are you using? Is that the first time u have used them in the "cold" weather?

[PeteS]

Yep same.

Took my USP to The Mall yesterday and the performance was hit and miss.

That'll be because it was damn cold there I expect.

I tried it today on winter gas and abbey red and it worked perfectly.

Sadly gas guns and the cold is not a productive mix.

[TheSpectre]

What gas are you using? Is that the first time u have used them in the "cold" weather?

I was using nuprol 3.0