I am looking for a red dot that has automatic adjustment to ambient lighting conditions and has auto-off/on feature as well. Idea is to lock up the shotgun and have the red dot ready to go without having to adjust it to turn it on.
I have looked at Rijicon, Aimpoint, Holosun, Sightmark, Leupold, Vortex, (and probably some other manufacturers that escape me at the moment) and have trouble selecting something appropriate. Looking for more suggestions.
Some other questions:
If I want to use the same red dot in the future for competition (USPSA/IDPA) does it make sense to have a single red dot that fits both roles? (My thinking is that both are mainly short range).
What MOA dot should I be looking at? I have been looking at 4.5-7MOA range.
Any other pointers/etc. are welcome.