Thanks for the info. My shotgun has a 4x on it and I'm comfortable with a 125-150 yard shot with it (slugs) for deer. I never get shots like that but I practice them.

My AR is the short (M4) version ...I think its called a CAR-15. I have a longer version too. I just wanted something to put up top for coyote hunting. I have the see thru mount so I can still use open sights.

Probably not the best coyote gun but it should work.