44M Zrínyi I
The 44M Zrínyi I was a Hungarian assault gun/tank destroyer of the Second World War. Developed on the basis of the successful 43M Zrínyi II, it was armed with a long 75 mm gun that was more suited to anti-tank warfare. This was the same 75 mm 43M gun that was used on the 43M Turán III medium tank. The 43M Zrínyi II itself was developed on the chassis of the much less successful 40M Turán medium tank. The 44M Zrínyi I was fitted with 6 rocket launcher tubes to test out the mounting of German-supplied 15 cm Nebelwerfer 41 rockets. Three launchers were mounted on either side of the rear of the hull around the engine deck. References 

World War II assault guns
World War II military equipment of Hungary
Armoured fighting vehicles of Hungary