VZ 52 Cleaning Kit Removal?

[Bulls-I_24]

I recently picked up a VZ 52 and was wondering if there was a cleaning kit inside the butt stock. I have not been able to find any info on the web on how to remove the butt plate.
I depressed the latch on the top and tried pulling back on the butt plate plate but it didn't budge. There seems to be some sort of pin on the bottom of the plate but does not press in. I just didn't want to force anything and cause damage. Can anyone explain to me how to properly remove the butt plate?

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