If I remember my gun history right (which is rare when I do. xD), I believe that these are the precursors to our modern pump-action shotgun. Originally, shotguns were single shot bolt-actions. Then, they started to develop a pump action that could hold more rounds, and reload them faster. The original pump-actions (the one's pictured I believe) were very unreliable, and a lot of hunters stuck with the bolt-action. However, as gun tech got better and better, so did the quality and reliability of the pump-action shotgun, improving so much that it is now the standard for all shotguns.

If I'm wrong about parts of that, I'm sorry, I tried my best. xD I hope this random bit of info helps ya out in some way.

Glad to know. I don't know much about guns, lol.

I don't know a lot, but I'm trying to learn as much as I can. I want to own a good sized collection someday, but atm, I only have a 12 gauge shotgun, so I've been trying to learn about that as much as I can, hence why I knew this little bit about it. That, and I can recall the most random facts at the most random times. xD

I have right now a .44 magnum.

Very nice! My uncle has one of those, and man, does that thing have a nasty recoil! xD But, it is a very beautiful, yet effectively deadly, gun, so it's well worth the recoil.

(Not, in real life, I'm 14, but its part of my character)

Oh, oops! xD I actually, irl, own a 12 gauge shotgun (is 21 irl). My uncle happens to be a retired Marine, so he picked up on that Magnum while actually on duty.

Well, nowadays, everything works against zombies, as long as you keep shooting them in the head.

lol Yeah, isn't that the truth. Now if we could only actually FIND some zombies to shoot. xD

In my world theres plenty of them.

*chuckles* As much as I'd like to live in another world, I am deeply seated in reality, and that's what I was referring to when I said that.

Not sure what the bottom is, though I might have an idea of the top. I'll get back to you.

Ok

The top looks like a Stevens Model 70 Visible Loader, a pump rifle that can fire .22 short, long, or long rifle. Hard to tell from this angle, though.

You seem to know very well about guns.