I would feel pretty confident of a tight shot out to about 75yds with my CZ 452; max.
Beyond it would be much less certain, but that is my shooting!
It came with barrel threads and I use it suppressed at my club's rifle range (read meadow with some plates, plinking targets etc). I got a SAK sliencer for it. Very quiet!!
On it I have a Nikon Prostaff 3-9 x 50 BDC scope.
All those together would be about € 580. I'm sure in the States all those bits could be had for much less!!