fast delivery and easy to setup.i put it on a jr carbine in 40s&w.get your first few shots on paper within 25 yds and you'll use alot less ammo from farther back while fine tuning.haven't tried switching the reticules to see if they hold the zero setting but what i set it on holds it's zero.i'm very happy with this item.
Pros: easy to install-easy to sight in.
Cons: ...more batteries to maintain...
This review was written in the old system and had content requirements that are different than reviews written today.