This is a very simple mod that just adds Muskets and ammo for them. Nothing else very simplistic.
I used this image for the Musket texture: https://minecraft.novaskin.me/skin/1794373189/macthlock-musket
And this one for the shells https://rust.fandom.com/wiki/Handmade_Shell
Idk how to make minecraft textures without there being a white background on the item.
I Used MCreator to make this mod