I have the CZ457AT-One, not a fan of the stock or the way the mags feed. I got that version because of the adjustability of the stock. Put a 1/2" high 0 MOA rail and the lower height (1.25?) version XTR Signature rings on it, Tract 4-20x50. Tossed a Yo Dave spring in it.
Didn't really want to buy a 30MOA rail, wanted to use those rings, more versatile. In my searches yesterday, noticed some 1" "low" Burris rings being advertised, still have to investigate that to see if they are what I want, or not.
Stock is too short for me, cheekpiece won't go high enough with that setup on it.. Boyd's does sell extended versions of the cheekpiece and buttplate, but, that will be a 300.00 bill by the time I get them here (Cda). The mags I have are 25rd CZ's, they don't like slow feeding at all, and I don't like the way the rounds hit going in when fast feeding, too low. It shoots OK. NDR mags may cure that issue, 80.00/pop though.
Debating on an MDT stock, not sure, Field or maybe XRS, not hard to spend 800.00 there, 370.00- 650.00 plus about another 80.00 ea for mags.
I could also just get ambitious and build a nice high cheekpiece and a buttpad spacer, we have the technology. And try out the NDR mags.
Was looking at T1X's too, could buy one from Basspro and put a different stock on it, MDT field or XRS, bit cheaper, or to about the same as a UPR, better adj factor too. Or I could choke up 1800.00 and get an Ace Target version T1X, and another 180.00 for NDR mags for it. Have a week to decide on it, see what MDT stocks may be on their blem sale, that may decide it.