Great optic - OpticsPlanet Exclusive Swampfox Sentinel 1x16mm Ultra Compact Micro Red Dot Sight

Love this red dot, just sighted it in today and had a blast. This is my first red dot for pistol and did a lot of research and this was one for my budget and it is amazing would highly recommend. People talk about bottom loading batteries and how they are a bad idea, my theory is well I guess re sighting in once a year, that just means I get to shoot more