If you have a Pardini try this one:
https://www.thingiverse.com/thing:2849201

I made this for my Pardini but it will work on any .22lr pistol.....I think.
Easy and fast to print.

V3 is one part
V5 are two parts, just glue them together

If You wanna redesign any of them you got the 123d file pluggv3.123dx and bakpluggv2.123dx