Anybody have any experience with one? I prefer aperture sights, but don't really like the skinner dovetail sight I have on the barrel of my papoose. I think it is too far from my eye. I don't think I will like the Marbles for the same reason, but the design is so much different than a normal peep sight. I am leaning towards williams firesights, but figured I would see if anyone here had good luck with the marbles. It will be going on my Marlin 30tk. Its got a low mounted scope in weaver rings. I want to be able to remove the scope and shoot irons sometimes.

I have one on a Rossi pump .22. It works ok for my eyes, not as accurate as a peep mounted on the rear receiver or tang, but better sight picture than regular open sights.

For the money, buy it, try it, and if tou dont like it you are not out that much $.

For your Marlin 30tk I would recommend Williams Ace in the Hole mount/sight.