Good luck in your hunt!
I hunted one down a few months ago after a buddy let me shoot my suppressor on his Mark III LITE. I was looking at Mark IV models but found an old stock Mark III threaded heavy barrel for about $100 less than a new Mark IV.
If you don’t have a 22 suppressor you should really consider spending the ~$600 on one. They make a 22 pistol stupid fun.
A red dot or reflex sight just adds to the package. My kids love mine and it’s a great trainer.
