Nice features for the money - American Tactical Imports Tactical Electro-Dot Sight, Red/Green, Four Reticles

After sighting in you tighten a set screw using an included allen wrench to lock down sight. The set screw on my sight is stripped out and will not tighten. So far the sight has stayed zeroed after 50 rounds, but I have concerns that it won't hold over time due to the inability to tighten the set screw.
Pros: Esay to set up and sight in. Features are nice. Easy to see in daylight.
Cons: Concerned with holding zero over time.

This review was written in the old system and had content requirements that are different than reviews written today.