Rifle season gets the attention in Pennsylvania, but the pistol by the bed gets used every night of the year, and the new CZ DUTY 4.0 is a serious candidate for that job. It is CZ's new-generation striker gun in 9x19: serialized internal chassis, fiberglass-reinforced polymer grip frame, direct-mount optics-ready slide with fixed sights, 4-inch unthreaded barrel. CZ's refined SFDA trigger is rated at 25±4 N (5.6±0.9 lbs) with a 4 mm reset.

Philadelphia and the suburbs from Doylestown to West Chester lean toward the compact DUTY 4.0 C: 15+1 (17+1 with the extended base plate), 770 g, 135 mm tall, easy to carry where Pennsylvania allows it. Up the Lehigh Valley through Allentown and Easton to Stroudsburg, and out to Harrisburg and York, the full-size DUTY 4.0 F gets the nod for home defense: 17+1 (19+1 extended), 780 g, 143 mm. Both are sold as plain or MS models, the MS adding a manual thumb safety. New release, $729 MSRP.

Where the P-10 had a registered 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) (4 mm (0.16 in) reset, 9 ± 1 mm (0.4 ± 0.04 in) travel), a 188 mm (7.4 in) long slide with direct-mount optics cuts, fixed sights and a four-inch barrel without a thread.

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

There is no manual thumb safety on this model. Drop safety comes from the firing pin block, the trigger safety and the drawbar safety, the way most modern striker-fired pistols are set up. If you want a thumb lever, the MS version has one.

The CZ DUTY 4.0 F suits anyone who wants a modern optics-ready 9mm with CZ's grip and a trigger that is better than the class average: home defense, duty use, competition and long range sessions where the extra grip and two more rounds matter.

Pennsylvania has no purchase permit and no waiting period. Choose the Pennsylvania dealer you want at checkout and the DUTY 4.0 ships to them. Your dealer runs the state PICS check at the counter when you pick it up. Ammo, optics and parts ship to your door. Current price and stock are checked live during the order, before payment is taken.

Questions buyers ask: What check does my Pennsylvania dealer run on pickup? Your dealer runs the state PICS check at the counter. There is no purchase permit and no waiting period in Pennsylvania. Does the DUTY 4.0 come with an optic? No. It ships with fixed sights and a direct-mount optics-ready slide. Red dots such as Holosun, Aimpoint and Shield fit without a plate, as CZ's photos show. How many rounds does the CZ DUTY 4.0 F hold? 17+1 with the standard magazine and 19+1 with the longer base plate.