Yep it is a CZ 452 American Varmint, it has a heavy barrel and is suppressed. I also added a Brookes trigger kit shim, this has lightened the trigger pull.
As for the stock, I guess I was just lucky and got one with a nice bit of tiger stripe through it. (it does have a few more dings in it now)
Ive been doing a bit of research on cz lately . The stocks are matched to grain and colour then stained different ( dark, light ) according to what will look best . Luck of the draw . Just a bit of useless information