There a pretty good gun !
It's a clone of a Beeman R9/HW95
I had one in .22 a few years back and tuned it with ARH parts and installed a Beeman trigger blade that made it much better than the factory one but it still wasn't bad in stock form. The one I had was the regular sporter stock but i believe the -2 is the thumb hole version and you will need high scope rings because of the really high comb of the cheek rest. One of the best Chinese clones out there along with the B40 which is a clone of a Air Arms TX200.
Let us know how it works out for you!
James from Michigan,