Surprisingly good but can lack accuracy. ok within 25 yds. - NcSTAR QR Compact Tactical Green Laser and Flashlight Set w/ Weaver Mount

This is a decent laser for the price. The laser is bright and holds up fine on my ar15. The problem is that the quick detach system puts no pressure on the sides of the rail and just pushes downward on the flat part of the rail. This seems like a good system at first, seems solid, very easy, and very fast, then you get to the range and realize it has some play in it from side to side and there is no way of tightening it to get rid of that play. It gives you about 16 MOA of potential inaccuracy. So if its a home defense laser then it will do fine because at 5-25 yds 16 MOA is only roughly 1-4 inches and if you aim center mass then your round should still find the target. Otherwise if your looking for real and reliable accuracy, this is probably not for you. Would be great for airsoft where 16 MOA inaccuracy in a laser is not even an issue. Light is ok but pretty dim. I'd say about 50-80 lumens.
Pros: Bright green laser does not lose zero internally
Cons: Externally loses zero due to poorly designed quick detach system

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