The Karabin przeciwpancerny wzór 35 (Anti-tank rifle model 35), kb ppanc wz. 35 or simply wz. 35 for short, is an anti-tank rifle developed in Poland. Initially a top secret project of the Polish Army, after the Fall of Poland numerous specimens were captured and used by Axis countries, such as Germany and Italy. The rifle is also known by its codename Urugwaj (Uruguay), or simply Ur.