I hope this sort of post is allowed here. I’ve been working on this but I’m not very knowledgeable on guns so I’m not super sure of my guesses. Specifically I’m trying to work out what sort of ammunition each uses, but the type/model of gun would help too.

Edit: I think my image did not upload. I uploaded it to Postimg here: https://i.postimg.cc/0QW3mRbM/230425234656.jpg