Are you sure the CZ doesn't adjust up and down? The screw on top should adjust it as long as you are pushing down on the sights???? This is how it has been with my CZ pistols.Just got back from the range, Palmetto State Armory in Summerville. I took both the CZ Shadow2 Compact and my Beretta 92X. First target I did 5, 7 and 10 yards with each on one side. CZ left and X on the right. Second target is CZ at 7 yards with remaining rounds I had. The CZ is out of the box absolutely amazing no doubt. LOVE <3 Pretty much sighted in for me perfectly which is good because it doesn't have the ability to be adjusted up and down. The Beretta I'm shooting low and it does have adjustable up, down, left and right on the rear sight. I tried to adjust but couldn't get the sight to move so wanted to research it first. Out of the two the X is a better range gun than the CZ, but barely. It is a full size and there is a little bit more weight there which helps. The trigger is better on the Beretta no doubt. Sight acquisition after the shot goes to the Beretta. The CZ will be an amazing carry without a doubt....much better than any of my H&K's. I can only image what a full size CZ will do at a range with a good red dot. Two amazing weapons, money well spent.