Exactly what i was looking for - ADE Advanced Optics NUWA PRO Motion Awake Ultra Micro Green Dot Sight

This is compact and easy to use, one thing to note. if the sight is blinking really fast its a sign that the battery is dead. Even though the user manual says not for weapons larger then 9mm i set it up on my .40 s&w and have not had any issues. it works exactly as expected. the green light is very bright, and works even better with night vision. for the price point this is unbeatable.