I have one on one of my 870s already and I don't have any issues with shooting it. I was just trying to figure out a place to put on some extra shells. It's presently on my zombie killer, or the bear defense gun as it is currently being used for. I'd just like to be able to carry a few extra shells. They do fit into those holes, but then if you opened the folder, the shells would fall out. I did see a pic today in the ee forms of a Hatsan Escort with a shell carrier taped to the folder. Looks cool actually.