CZ DUTY 4.0 F MS

About this product

Drop-in triggers are a big part of what leaves our warehouse, so it is worth saying up front that CZ's new DUTY 4.0 arrives with its trigger already sorted. The refined SFDA unit is specified at 5.6±0.9 lbs, with 9 mm of travel and a 4 mm reset, and it is a factory part, not an upgrade you buy afterward. The rest of the pistol follows the same idea: a striker-fired 9x19mm built on a serialized internal chassis with a modular fiberglass-reinforced polymer grip frame, a direct-mount optics cut and fixed sights.

Sizes are simple. The C compact gives you 15+1 rounds, 17+1 with the extended base plate, in a 770 g, 135 mm tall gun. The F full-size gives you 17+1, 19+1 extended, in a 780 g, 143 mm tall gun. Both carry a 4-inch barrel without threads inside a 188 mm, 33 mm wide package. MS models add a manual thumb safety alongside the firing pin block, trigger safety and trigger bar safety. CZ lists it at $729.

Capacity on the service-size is 17+1 standard and 19+1 with the extended floor plate. Height 5.6 in (143 mm), empty weight 27.7 oz (780 g). It is the duty-belt, range and home-defense version of the line, and the one most buyers find easiest to shoot well.

MS stands for external safety. This model adds a frame-mounted lever to the passive safeties every DUTY has: the firing pin block, the trigger safety and the trigger-bar safety. Agencies and buyers who want a positive on/off control choose this version; the trigger itself is unchanged.

Where the P-10 had a serialized polymer frame, the DUTY 4.0 moves the serial number to an internal modular chassis. That is the headline. The rest follows the modern service-pistol formula done carefully: a striker SFDA trigger at 25 ± 4 N (5.6 ± 0.9 lbs) (0.16 in (4 mm) reset, 9 ± 1 mm (0.4 ± 0.04 in) travel), a 7.4 in (188 mm) long slide with direct-mount optics cuts, fixed sights and a 4-inch barrel without a thread.

The CZ DUTY 4.0 F MS suits anyone who wants a modern optics-ready 9mm with CZ's grip and a trigger that is better than the class average: the belt, the nightstand and the range; the version to buy if you rarely need to hide the gun.

Magazines and triggers from the same order ship to your address as usual, but the pistol itself ships only to an FFL dealer. Tell us which dealer at checkout. When the gun arrives there, the dealer runs the transfer and applies whatever your state requires for a handgun pickup. We leave the legal side entirely to the dealer, since they know the local rules and we do not set them.