Here is the pistol a lot of Connecticut permit holders have been waiting on: CZ's DUTY 4.0, a new-generation striker-fired 9x19mm built on a serialized modular chassis. Because the serial number lives on the internal chassis, the fiberglass-reinforced polymer grip frame around it is modular. There are four models in the line. The C compact holds 15+1 and stands 5.3 inches tall; the F full-size holds 17+1 and stands 5.6 inches. Pick either one as an MS model and you get a manual thumb safety added to the firing pin block, trigger safety and trigger bar safety.

Whether you live along the Gold Coast in Stamford and Norwalk, in New Haven or Bridgeport, or up the valley through Waterbury, Meriden, New Britain and Hartford, the use case is the same: a reliable 9mm for home defense, for the range, and for carry on a Connecticut pistol permit. The optics-ready slide with fixed sights means a red dot can go on now or later.

Full-size means 17+1 rounds, a grip that takes the whole hand and a frame 5.6 in (143 mm) high. With the longer base plate the count goes to 19+1. Empty weight is 27.7 oz (780 g), which soaks up recoil without making the gun heavy on a belt.

This is the version with a manual thumb safety. The three automatic safeties (firing pin block, trigger safety, drawbar safety) are the same as on every DUTY; the lever is an extra for people who were trained on one or simply want one.

Under the DUTY name sits a serial-numbered modular chassis, a 1.3 in (33 mm) wide fiberglass-reinforced polymer frame, a 102 mm barrel and a trigger CZ rates at 25 ± 4 N (5.6 ± 0.9 lbs) with a 0.16 in (4 mm) 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 nightstand 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.

Connecticut buyers bring their State Pistol Permit or DESPP eligibility certificate to the dealer. The DUTY 4.0 ships to the licensed Connecticut dealer you choose at checkout, and that dealer completes the transfer and applies the state's rules at pickup. Ammo and gear ship to your door where the law allows. We confirm price and availability at the moment you order, before any payment.

Questions buyers ask: What do I need to bring to my Connecticut dealer for pickup? Your State Pistol Permit or DESPP eligibility certificate. The dealer handles the rest of the transfer and tells you about anything Connecticut-specific. Is the DUTY 4.0 F too big for carry? At 7.4 inches long and 1.3 inches wide it is a standard service size. Many carry the F in a belt holster; the C is the easier choice for concealment. 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.