Any H&K USP 9mm owners?

[Veryevilnip]

Just bought my first range gun, the H&K USP 9mm
I got the full size one and the factory oem magazine cartridges are $34.95 US
And they listed a H&K USP 9mm compact for $19.99 US.

Question: can I use the compact magazine for my full size USP?

Thanks in advance everyone

 

[Waynetheman]

I believe the compacts do not fit.

Where you getting mags?