No battery needed - Osight S 1x21mm Reflex Red Dot Sight

Very easy to setup and install. I recommend an inch pound torque screwdriver but it cant be misaligned without one. OpticsPlanet actually sells this for less than the manufacturers website. It defiantly fits a 365 giving you better control on a micro 365 9mm. You will have much better groups and faster follow-up shots compared to original setup. Delivery was fast and everything you need is in one box, the screws are probably worth the price alone and are also included. If your looking for something special, this is it. The best dot setting is the circle + dot giving easy follow-ups. I will be using this as my weekday EDC.