No, but, e-gunparts.com might.
Try e-gunparts.com
Firing Pin Block
A pistol by loading ammunition into the chamber. The firing the pin then strikes the cartridge, which causes the pistol to discharge.
Check the gun stores in the yellow pages
The purpose of Beretta's firing pin catch is to prevent the firing pin from going forward from in the event that the pistol is dropped. It's just simply redundancy, every precaution to not put little holes into your body is taken.
Your local dealership is the best place to get a screw for the firing pin on a Sears model 42-103 19791-22cal sllr bolt action gun. Pawn shops often carry them too.
Best left to a gunsmith
what's the question ???
If the decocker is n the fire position, and a round is chambered, the hammer will rise and fall, striking the firing pin. The pin will strike the primer of the cartridge, firing the pistol.
Gun shop, gun show, e-gunparts.com
You need the services of a good gunsmith or machinist
That's a task best left to a gunsmith.