Magnum. They're easy to make out of 1/2" EMT "steel conduit". A couple hack saw cuts, drill a couple holes and file the edges. I could send you a picture.
Art
Hi. I'm not sure if my message went through. Anyway, I had a question for you regarding a Remington 788 (in .222). Had been reading an old post and saw your name mentioned in regards to making a single shot follower. Is that something you've done? If so, do you have any interest in making another or know where I could get one?