I waited a few weeks to leave feedback. The people saying that the laser can’t be adjusted/dialed are likely talking about 1st generation lasers, or they’re outright confused. I reached out to customer support prior to buying based on those exact comments. They (Niki) assured me that those concerns were outdated or irrelevant. She even sent me extra windage screws which was a nice gesture.So in a nutshell I like this design. I’m more or less blown away by the durability (there’s YouTube vids showing torture tests that are thorough to say the least)….it’s easy to dial the laser. And having never been around a green laser before I’m impressed by the visibility. I wasn’t expecting to be able to see the laser on green grass 100 yards away.This is nice and I’m completely satisfied.And I’ll go ahead and say it here since I’m confident in Viridian’s willingness to factor in customer feedback. In the future as they make slight adjustments it would be cool if the button was more of an “on/off” type thing rather than having to hold it. I would still give this 5.5-6 stars out of 5 regardless.,.but just sayin ;)I was looking for a green laser for my rifle for a long time. All of the ones that are "quality" seem to be more than $400. I've purchased a few less expensive ones and was very disappointed in all of them. This one not only seems to be quality but it is very ergonomic and fast to use. You will love it. Make sure you use Viridian batteries because they're wrapped. It's so it won't create a short. They're not expensive so it's not a deal breaker.The more i use it the more i like it.I mounted it and when i went to zero it with the Allen wrench, the screws were stiff. I thought i had purcased another broken pos laser with stripped or frozen screws. But to my delight they are just stiff! It was strange when i adjusted the windage the laser moved horizontaly not left and up. Skeptically i did with this laser as with all cheap crap. I zeroed it then smacked it up down left right then rezero then repeat till the springs, screws and aperture settle and hold somewhat zero. This laser didn’t budge off zero. After the smack test and a 30rnd range test 556 it held win and elev.The brightness is very good. In the attached pic, you CANT see the laser on the middle tree in the background. Straight into the setting sun. 25-30 yds. But i can! Easily.It is a medium sized hand stop. Your index and middle finger are the only contact points.Im hoping to see a full foregrip and pistol grip in the future!This is my 2nd one for another AR build. These work great, fit my ergonomics perfectly and have great adjustment and most importantly hold zero.When the laser arrived I could not make left/right adjustments. Up/down adjustments were OK..The screw would not move for the left/right adjustment. I called Viridian and talked to AJ. He was very helpful and polite. Sent me a Fed Ex return label. He indicated it takes 2-3 weeks to get repairs and most of the time is in shipping. I like the product. It mounted quickly and easily. Laser seems very bright. I will try to re-post when I receive the repaired product.Awesome compliment to my top picatinny rail mount light. Serves as hand stop grip and bright laser.As others have reported this laser does not adjust left to right!! Emailed the manufacturer and still have not received a response! It mounts very well the laser is very bright it feels really good when mounted. Is completely useless at ranges outside of 15feet.Pushed the button to activate the laser maybe 5 times and it stopped working even with new batteries