Well, built, small footprint, works well, but! - Holosun RML Rail Mounted Compact Laser Sight

I have had this rail-mount laser from Holosun for about a year, during which time I have had ample opportunity to evaluate it. It holds zero with no issues. I chose the green laser, and it is very bright during the day, using a day-reflective site. I like how small it is. However, the only issue I have is that the battery is exhausted in about 30 days with no use, just stand-by time. I have a few other lasers on other guns and I periodically check them. I have a SightMark green laser that has had the same battery in it for two years and it's still working. So, having a battery go dead after 30 days just in standby mode is not very good for a Holosun product, I would expect more from them.