Don't buy this - AimShot LS8150 Compact Pistol Green Laser Sight Kit w/ Battery Charger

While the light is bright enough, there is a serious design flaw in this laser. Rather than having the windage adjustment screws at 3 (or 9) o'clock and the elevation at 6 o'clock, the two adjustment screws are at approximately 4:30 and 7:30 o'clock. So, any adjustments are made along a diagonal moving from the 7:30 to 1:30 position or the 4:30 to 10:30 line. Which means that when your elevation is correct, your windage will be off, or when your windage is correct, your elevation is way off. I complained to the manufacturer and explained the problem and they sent a new unit, stating that the "alignment springs were bad", but the new unit has the same problem. I complained again and they stated that the previous units used 4 adjustment screws (you can see the "plugged" holes on the top of the unit in the photo) to get it dialed in better. However, given the current design, it's physically impossible to get the unit to align point of aim with bullet impact unless the natural trajectory of the bullet falls where the laser hits. On my Glock 34 and Ruger SR9C 9MMs, the alignment is off at least 6-8 inches at 7-10 yards.

Don't waste your money, it's not a question of getting a bad unit, it's a serious design flaw, akin to having your scope adjustment turrets located at 4:30 and 7:30 positions rather than the universal 12 and 3 positions.

Pros: Bright Light
Cons: Can't adjust zero properly

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