Zakłady Mechaniczne "BUMAR-ŁABĘDY" S.A. based in Gliwice are one of the companies belonging to
Polska Grupa Zbrojeniowa S.A. They are an entity classified as an enterprise of strategic importance for the country's defense. The company specializes in the production, renovation and modernization of armored equipment. In 2010 the firm won the contract to build
Hitfist OWS remote-controlled turrets for Polish armored vehicles. In 2016 the firm was awarded the contract to refit Poland's
Leopard 2 tanks. In 2017 the firm was contracted to refit Poland's
T-72 tanks. ==References==