I had one made by E&L Manufacturing.
http://www.brasscatchers.com/store/brasscatcher.html#Anchor-35882
http://www.brasscatchers.com/store/brasscatcher.html#Anchor-35882
My original AR was pre flattop (with the handle) and it snapped over the receiver under the handle. I liked it and emptied it every 20 - 30 rounds. I had this in the early '80's.SemperFi said:I've seen that style before. How do you like it? I will be shooting more of a benchrest style with my AR so I don't think it would get in the way too much. How does it mount to the upper receiver?