CZ DUTY 4.0 F MS
About this product
Anyone who has milled a PF940 rail block will look at the DUTY 4.0 and notice where CZ put the serial number: on an internal chassis, not on the polymer. That single choice makes the fiberglass-reinforced grip frame a modular part and gives the pistol a layout that frame-first people will appreciate. The rest is a modern striker-fired 9x19mm with a 4-inch barrel, no threading, and fixed sights.
Sizes break down this way. C compact: 15+1 rounds, 17+1 with the extended base plate, 770 g, 135 mm tall. F full-size: 17+1, 19+1 extended, 780 g, 143 mm tall. Shared dimensions are 188 mm long and 33 mm wide. The optics-ready slide accepts a red dot by direct mount, and CZ's press photos show Holosun, Aimpoint and Shield units fitted. Trigger is a refined SFDA at 25 N, about 5.6 lbs, 9 mm travel, 4 mm reset. The MS suffix means a manual thumb safety sits alongside the firing pin block, trigger safety and trigger bar safety. MSRP: $729.
Pick the F when the gun lives on a belt or in a home-defense rather than under a T-shirt. Over the short-grip it adds two rounds (17+1 against 15+1), about 8 mm of grip and 10 g of weight, and nothing else changes.
The MS model carries a frame-mounted manual safety on top of the firing pin block, trigger safety and drawbar safety. Everything else, chassis, trigger, slide and optics cut, is the same as the version without the lever.
Under the DUTY name sits a registered modular chassis, a 33 mm (1.3 in) wide fiberglass-reinforced polymer frame, a 4-inch barrel and a trigger CZ rates at 25 ± 4 N (5.6 ± 0.9 lbs) with a 4 mm (0.16 in) reset. The slide is optics-ready by direct mount rather than an adapter plate. Fixed sights come standard, and the barrel is not threaded.
Who is it for: the belt, the home-defense and the range; the version to buy if you rarely need to hide the gun. If you already shoot a P-10, the DUTY is the next step in the same family, with a new chassis and the optics done right.
Unlike the frame kits here, a DUTY 4.0 is a serialized complete pistol and must go through an FFL dealer. Select your dealer at checkout, the pistol goes to that dealer, and the dealer completes the transfer and applies your state's rules when you come to collect it. Make sure the dealer is expecting it.
Specs at a glance
Specifications
| Caliber | 9x19mm (9mm Luger) |
| Magazine capacity | 17+1 (19+1 with the extended base plate) |
| Barrel length | 102 mm (4 in) |
| Overall length | 188 mm (7.4 in) |
| Width | 33 mm (1.3 in) |
| Height | 143 mm (5.6 in) |
| Weight (empty magazine) | 780 g (27.7 oz) |
| Frame | fiberglass-reinforced polymer |
| Trigger | SFDA striker-fired |
| Trigger pull | 25 ± 4 N (5.6 ± 0.9 lbs) |
| Trigger reset | 4 mm (0.16 in) |
| Trigger travel | 9 ± 1 mm (0.4 ± 0.04 in) |
| Safeties | Firing pin block, trigger safety, trigger bar safety, manual thumb safety |
| Sights | Fixed |
| Threaded barrel | No |
| Optics | Direct-mount optics ready |
| Manufacturer | CZ (Česká zbrojovka) |
| MSRP | $729 |
Frequently asked questions
- Can the grip frame on the DUTY 4.0 be changed?
- The grip frame is a modular polymer part because the serial number sits on the internal chassis. The chassis is the regulated component.
- What is the weight difference between the C and the F?
- Only 10 g: the C compact weighs 770 g and the F full-size 780 g. The main difference is the 8 mm of extra grip height and two more rounds in the F.
- Is the CZ DUTY 4.0 F MS the same gun as the F?
- Yes, apart from the manual thumb safety. Chassis, trigger, slide and the 17+1 capacity are identical.
- Who should pick the MS version?
- Anyone trained on a manual safety or who wants a positive on/off control, including many agency buyers.