The city is home to the biennial Radom Air Show, the largest and best-attended air show in Poland, held during the last weekend of August. "Radom" is also the popular unofficial name for a semiautomatic 9 mm Para pistol of Polish design (the Model 35/ViS-35) which was produced from 1935 to 1944 at the national arsenal located in the city, under the directorship of Kazimierz Ołdakowski, after whom a square in Radom is named. The Łucznik Arms Factory (still located in Radom) continues to produce modern military firearms.