Double Action/Single Action
The CZ has a double-action/single-action trigger. When the handgun is first chambered the hammer is placed in the ready position by pulling of the trigger. The initial trigger pull is hard and long. For subsequent shots, the trigger pull is very light since the hammer is set into place by the movement of the slide.
Excessive Slack
As with many double-action triggers, shooters sometimes complained about the initial length of the pull and the slack that had to be taken up before the pistol fired. Short-fingered shooters in particular had trouble with the action.
Omega Trigger System
The CZ P-7 Duty resolves many of these trigger issues with a new trigger system. CZ retained the look and feel of their handguns but the simplified Omega trigger system reduced the number of necessary parts and smoothed out the trigger pull.
Decocker
Massad Ayoob considered the lack of a decocking mechanism on the CZ as bad news. This meant the hammer had to be lowered manually onto a live round in the chamber. Any mistake on the shooter's part could mean an accidental firing of the handgun. The Omega trigger system offers the buyer the option of having a decocker on the handgun.