Pretty good but too early to tell - Burris SpeedBead Red Dot Reflex Sight

Purchased 2 of these (1 as combo and one with Fastfire3 and speed bead separately). The combo worked like a charm. No issues as I've read with mounting between the stock & receiver.

The one purchased separately, tons of issues. Sending the speedbead back to Burris for warranty. Did not go as smoothly as the combo and issues sighting it in. Good think for forever warranty.......