We g17 magazine help

[nichollswxm]

Hi

I have a WE g19 and bought a spare g17 mag for it.


3 months later, now when I fill the mag my g19 with original mag shoots fine kicks hard, when I use my g17 mag the kick is much much less and I can't get half as many shots off with it.

I have stripped it down soaked the valve in oil and same problem.

Am I best getting a new high flow valve for £10 or a new mag for £25?

Thanks in advance