What I find interesting is that if you want a gun you can get a gun. Making gunpowder isn't hard (potassium nitrate, charcoal, sulphur -- or just potassium nitrate and sugar will work, or potassium nitrate and citric acid, or...), just messy if you have to make the KNO3. A projectile (rocks will work), a barrel to control the flight (a piece of pipe is okay). Or just use a sharpened stick. Do in someone who has a gun, like a cop or a soldier and take the gun and ammo.

Were I King Of Everything, I'd decree that all handguns had to be gate-loading, smoothbore, single action revolvers or, better still, flintlock single shot smoothbores.

Back to the 17th Century, I say!!!!