I've got a 22LR CZ 452 Military Trainer, a CZ 455 American in 17HMR Combo (with a 22LR Barrel) and just picked up another CZ 455 American in 22WMR Combo (with a 22LR Barrel). I am extremely happy with these rifles and enjoy shooting them. I have noticed that some aftermarket accessories websites refer to all the above calibers as well as 17 Mach 2 when speaking of the CZ 455. Did CZ offer a 17 Mach 2 Barrel set up for the 455??? I know that the 452 was available in 17 Mach 2 at one time.
Oh yeah, just to brag, but I picked up the CZ 455 22WMR Combo for $348 as a one only, NIB, from a Big Box store on Black Friday.
Thanks