I have had a CZ 452 for some years now and always treasured it for it's quality construction and accuracy. One thing I did not treasure however, was the extra long barrel (nearly 25"). On the target range the extra length may be worthwhile, but I don't spend that much time punching paper. I am a hunter primarily, and the extra length was not conducive to carrying in a vehicle or carrying through brush.
I didn't want to trust my super-accurate CZ to just anybody! Well, my favorite gunsmith was visiting me from Missouri, so I handed him the problem. He took it home and did the work..sending it back with my son, who was visiting him some 6 weeks later.
Cutting to the chase, I am absolutely thrilled with the rifle now. With the barrel at 17", it is as accurate or better than it was to start. See photo of rifle below with remainder of the barrel placed where it used to be. He could have installed an iron sight back on the muzzle, but I wouldn't be using it anyway.. Besides, if he wants to, he can do that someday when he inherits it. I will now be carrying the CZ a great deal more than in the past..
BTW: My favorite gunsmith is my Grandson, Ironglowjr, who posts here on GBO... mainly in the AR/AK forum where some of his work is displayed...