Vis (Polish designation pistolet wz. 35 Vis, German designation 9 mm Pistole 35(p), also known incorrectly as Radom in English sources) is a 9 mm caliber, single action, semi-automatic pistol. Originally designed by Piotr Wilniewczyc and Jan Skrzypiński in 1930. Since 1936 it was the standard handgun of the Polish Army.

History

The design was generally based on John Browning's Colt M1911A1, operating on the short-recoil principle, with the barrel being cammed down and away from the locking lugs in the slide. Unlike M1911, the barrel was not cammed by a link, but by a ledge of sorts, which contacts a portion of the barrel and forces it down as it is moved rear with the slide by the recoil force, in a similar way, as in Browning's new FN HP pistol.

The handgun was prepared in late 1930 and at the beginning of 1931 the first pistols were ready for testing. Initially it was named WiS (an acronym of the constructors' names), later the name was changed to a latinized version: Vis (meaning power in Latin).

The tests proved that the handgun was very accurate and stable while at the same time remained reliable after more than 6000 shots. The Vis was generally regarded as one of the best army pistols of that period. Production started in the State Armory in Radom in late 1935 and the following year it was introduced as the standard weapon of Polish infantry and cavalry officers. Successively, other units were to be equipped and by 1942 all other handguns were to be withdrawn from service. By mid-1938 it was introduced to the armoured and air forces. Before the Polish September Campaign, approx. 49.400 (out of 90.000 ordered) were delivered to the army.

After the Polish defeat in 1939 the Germans took over the Radom Armory and continued production of the Vis under the new name of 9 mm Pistole 35(p). Up to 1945 between 312.000 and 380.000 were produced and used by the Wehrmacht.

For fear of Polish technicians working in the Armory supplying the Home Army with the weapons, the barrel production was moved to the Steyr works in Austria. However, underground production of Vis barrels was started in Warsaw and several hundreds of Vis pistols were delivered to the Home Army and used extensively, among others, during the Warsaw Uprising. In 1944 all production was moved to the Steyr works in Austria. The Vis remained in production until April 1945. Vis pistols made after 1939 were issued in four different series, each with small modifications to simplify production. Generally, the war-time Vis were of much lower quality than the original, degrading towards the end of the war.

In August 1992 the Lucznik Arms Factory in Radom reintroduced the Vis pistol and produced a small series on the basis of the original plans and specifications.