Check with William at Sumtoy on the weaver mount. I REALLY like the Mueller sight because my eyes have changed a lot in 30 years...My left eye is great, right eye has astigmatism and is only good up close...using both eyes gives me good vision without glasses. Since the Mueller is large and sits up high, it doesn't take much to cant my head just a little and aquire the dot with the left eye, while both eyes stay open and focused on the target. Acquiring the dot with the right eye puts up a "bloom" that is NOT ideal. If I had a smaller or lower red dot it would not work as well. This SLIGHT head cant keeps the dot in sharp focus and gives total field vision. Sight problem solved!