I have CZ's . I have a Glock 34 gen 4 . I also bought a 17 slide mos to run it with a red dot . So far no bobbles what so ever and it shoots accurately . Each pistol is it's own platform but why put down a Glock it works and works bleep well . Easiest gun to fix with parts on the market . I have had M&P's Walthers they all work well .