take slide off . from back of slideuse small punch to push firing pin forward and slide the block up and out. pin will come out the back

Of your just wanting to clean the firing pin channel that can be done with a pipe cleaner, solvent, and an air compressor. If your taking about disassembling the firing pin assembly, and or the trigger assembly, these are not parts that need disassembling and cleaned and shouldn't be serviced by most users.
It could even void your warranty.
Incorrectly reassembling your pistol can cause malfunctions and could lead to injury.
From the Pavona manual
"NO FURTHER DISASSEMBLY of the pistol is recommended unless performed by a qualifed gunsmith. Remember that work done by others and unauthorized gunsmithing by non-factory personnel will VOID the warranty.
9) To reassemble the pistol, simply reverse these procedures."
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https://assets.academy.com/mgen/42/20079242.pdf

Victoria, this may help : -- youtube.com/watch?v=VpKdzeoMhOQ