M4 co2 mag help.

[BoB]

Just picked up a we co2 mag for my pdw. I have now went through 5 co2 cylinders trying to screw the damn thing in but no matter how hard and fast I try to screw it in, it keeps spilling out.

Am I not doing it fast enough?

[Sky_7]

I didn't have a problem when screwing it in, i got a problem when I was trying to get it out... this is from my m4 co2 mag

[andrew312nz]

possible that the o-ring that sits at the pin of the mag is missing.

Happened to me, gas everywhere.

[sewktbk]

i have a PDW as well and i seem to have a problem with the original gas mag conpared to the co2 mag. When empty, the gas mag doesnt push entirely on the bolt catch, so the bolt doesnt catchcompletely, and when firing dry, it fires as if loaded.

Just so you,re wondering, the dry-fire pin on the mag is off, first thing i checked.

The co2 mag doesnt seem to have that problem.

Is this a wear issue?

PS how many shots can you take on a single CO2 cylinder? i'm not used to using CO2...

[Sky Manatee]

Ive got the pdw as well and I get about 14... most peoplw get 2 mags from what I hear.
Also try putting oil in the expansion chambers.