Question about HK P30 Mags

[Matty308]

I know in some Glock's etc you can use the 40cal mags in a 9mm gun so that you get a few extra rounds. Just wondering is anyone knows if you can use the .40 P30 mags in a 9mm gun? If so, how many extra rounds does it fit?

Thanks, Matt.

 

[09outlander]

No reason it wouldn't work, most .40 mags hold 12-13 rounds of 9mm. Will the gun function most of the time, sure, for what we use them for. But I would never trust my life to it.

 

[Matty308]

Has anyone tried this before?