Aina aiba's Things

I was looking into some layout assemblies for gun making cuz I was thinking omg if I was summons to another world I really wanted to make a gun ( even though I don’t think it’s the right thing to do ) and it seemed really frustrating to me that idk the engineering for a gun even though it was made first time over a 1000 years ago ╮(￣▽￣......   reply