Hoosiers get a straightforward deal on CZ's new striker pistol: pick the size, pick safety or no safety, name a dealer, done. The DUTY 4.0 is a 9x19mm service pistol with a fiberglass-reinforced polymer frame wrapped around a serialized modular chassis. The frame is the modular piece; the serial stays on the chassis. CZ cut the slide for direct-mount red dots and kept fixed sights, fitted a 4-inch unthreaded barrel, and tuned the SFDA trigger to a 5.6-pound pull with a 4 mm reset.

Around Indianapolis, Carmel and Greenwood, up in Hammond and Valparaiso, and east through Anderson, Muncie and Richmond, this pistol lands in two roles: a carry gun and a home-defense gun. For carry, the DUTY 4.0 C compact with 15+1 rounds and a 5.3-inch height makes sense. For the house or the range, the F full-size at 17+1 is the pick. MS versions add a manual thumb safety.

The F is the service-size frame: 143 mm (5.6 in) tall, 780 g (27.7 oz) with the magazine in but empty, 17+1 rounds of 9mm on board and 19+1 with the extended floor plate. The longer grip fills a big hand and settles the gun between shots.

Three things define the DUTY 4.0. First, a registered modular chassis: the registered part is inside, the grip module around it is modular. Second, the trigger, a striker SFDA rated at 25 ± 4 N (5.6 ± 0.9 lbs), 4 mm (0.16 in) reset, 9 ± 1 mm (0.4 ± 0.04 in) travel, which is short and repeatable for a service pistol. Third, a direct-mount optics-ready slide, shown by CZ with Holosun, Aimpoint and Shield dots fitted, so a reflex sight sits low without a stack of plates.

MS stands for manual thumb safety. This model adds a thumb safety lever to the internal safeties every DUTY has: the firing pin block, the trigger safety and the trigger bar safety. Agencies and shooters who want a positive on/off control choose this version; the trigger itself is unchanged.

Who is it for: home defense, duty use, competition and long range sessions where the extra grip and two more rounds matter. 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.

Indiana has no permit to purchase and no state waiting period. Choose the Indiana dealer you want at checkout; the DUTY 4.0 ships to them, and that dealer runs the background check and releases it at pickup. Ammo and accessories go to your home address. Current price and stock show at checkout, confirmed live before payment.

Questions buyers ask: Can I pick up a DUTY 4.0 the same day in Indiana? Indiana has no state waiting period. Once the pistol arrives at your dealer and the background check clears, you can take it home. What is the difference between the DUTY 4.0 and the DUTY 4.0 MS? The MS adds a manual thumb safety. Both versions keep the firing pin block, trigger safety and trigger bar safety. 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.