Hello everybody. Longtime CZ user here. I am trying to find an adapter plate for a Holosun 407K to fix on my P10C OR. I've been searching for so long now and couldn't find conclusive or definitive information. Some say it's a RMSC footprint, others say it won't fit. Does anybody here actually have a 407K/507K on their P10C OR ? If so, how did it fit?