Karabin maszynowy wz. 36, also known as Karabin lotniczy uniwersalny wz. 36 (Polish: Machine gun Mark 1936 and Polish: Aerial Universal Machine Gun, respectively) was a Polish 7.9 mm calibre aerial machine gun of the 1930s. It was a further modified version of Karabin maszynowy wz. 33, itself a modification of the successful Ckm wz.30 multi-purpose HMG. The major differences between wz. 33 and wz.36 included redesigned feeding mechanisms allowing for the weapon to be fed from both sides (and coupled on double mountings). It was fed by belt magazines of 100 bullets each.