Hussite hand cannon

There are two models. In both cases, the original is longer, but I made it shorter due to most printer size limitations. Both guns consist of two parts: one is the gun itself, and the other is a holder for an approximately 100 cm long pole.

A) The original is a 33 cm long metal gun with a 14 mm projectile size.

B) This model has a different construction, the original was over 40 cm long. The projectile size is 16 mm.