Great sight - Holosun Paralow Circle Dot Sight with Mount

First off, I would have given this 5 stars, but it only comes in red dot not green and I thought it had night settings (night vision). That last part was my fault for not doing research. Other than that, it fits perfect on my SOCOM CQB 16, with no problems. I love the quick put on and take off ability, long distance with iron sights and close range for red dot. The push buttons on the side to make it brighter or dimmer are easy to get to and the solar panel works like advertised. The battery for me was easy to take out an put back in, have to do a little prying, but I used a rag and small flat head screw driver without getting scratches or harming the finish. All in all it is a great product, two of my friends have ordered different styles an we can't wait to try them out.