[@Willy Vereb]

I don't want to sound like I'm saying you can't have primitive hand guns, but I am worried about the way you're suggesting why you have them. What I'd like more is less, "my people dug them out of some ruins or whatever and maintain them" and more, "my people interact with the wider world through trade and acquire them". The later would establish them in my mind as less like ocean Mongols off in some far corner criss-crossing and island or through a series of islands where their capability to arm themselves depends on not just how rich in food the area is but also how they might acquire the materials and keep up a manufacturing environment to manufacture and produce the parts in isolation. It wasn't until the invasion of China that the Mongols even learned of and acquired siege engines, let alone gunpowder for rockets and the like.