First PzKpfw II model to be mass produced.
Driver sat on left and had access hatch in the front glacis plate. He had 3 vision ports in the front. Had redesigned visor for the driver.
Radio operator had seat on floor at rear of fighting compartment and had a vision port in the rear as he faced to the rear.
The commander's seat was suspended from the turret wall and rotated with turret. Turret roof started with a split hatch then had a cupola with 8 episcopes. Periscopes were installed in the turret. Turret was hand traversed. The commander had a 2.5 power optical sight and an open sight for far and near targets respectively. The commander communicated via voice tubes to the crew.
The 20 mm KwK 30 was fed by a 10 round magazine. It was fired in full automatic mode as it couldn't fire single shots. A German 1939 training manual stated: "Short bursts of 2 or 3 rounds is the normal method of engaging targets..."
Nose plate became welded and angular. Flanges were installed at the top and bottom of the gun mantlet to help prevent lead splash.
In 1940 20 mm plates were bolted to hull and turret, and 15 mm plates to gun mantlet.