I used this for the last couple of years but it only fits one of my guns and I have 8 others (I think). I bent the metal to give me a perfect sight picture for my beck rifle, I made a few more but it is a pain get them bent just right plus they are held in place by one lock bolt and may shift if bumped hard enough. I didn't want to drill another hole in my tangs, then have surgery and not need the peeps.
This peep looks good, the rifle, not so much, my first build with 15 years' worth of rough hunting in the thick woods and privet choked creek bottoms. It is a bit shop worn but sure puts the deer on the ground.
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I used thinner metal on this one for my Haines rifle, it looks cheesy and doesn't have the rock-solid attachment of the peep shown above because the hole countersink is thin and doesn't have the tang bolt head purchase of the thicker sight.
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