This is the Springfield M6 Scout and it also comes apart so it can be packed in a backpack/survival pack in two pieces. This one is .410 and .22 Hornet. I've read that some will also shoot 45LC but this particular one doesn't say anything about that. It was really thoughtful of them to put in that ammo storage. I'm going to wrap in some para cord to give it a little better look but I really like it. It's a well built little gun.