I have 1 Vortex tactical 30mm scope ring. It's an extra high for absolute co-witness on ar15. It has not been used other than a test fit it on my sig 522 with a vortex red dot, finger tight and not fired. $15 shipped.
This one is to high for any kind of co-witness with my factory iron sights so I went with a high mount.
Here's a link with specs http://www.vortexoptics.com/product/...ute-co-witness.
This one is to high for any kind of co-witness with my factory iron sights so I went with a high mount.
Here's a link with specs http://www.vortexoptics.com/product/...ute-co-witness.

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