Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Would this unit work on an AR-15?  I know it will install on a standard rail, but could this be an option for me?  If it can stay zeroed on a .45,...
Document: I use this on a Beretta 92A1 and my isses are as follows:1. The rail mount is not as secure as I would like, and if tapped will move slightly on the rail messing up the sight adjustment.2. The on/off button doesnt register sometimes and the button has to be pressed more than once, which is frustrating.Maybe this would work better on a different gun or rail, but I plan on replacing the unit.
Sighted in fine. Headed to the range to try out. Very pleased so far. I would recommend this product to whomever that is looking for this type of unit.
I am also concerned about how water tight the battery compartment is going to be. The cover does not seem to fit flush with the edges of the unit once the battery is in place, making me wonder whether it would leak if submerged in a puddle or the firearm was used in a driving rain storm. The unit is also a bit pricey compared to other lasers of the same ilk. It would be a better bargain at $75.
I own two of the sig tac lasers and they work very well. The last sig tac laser I ordered from you I returned because every time I fired my Smith & Wesson 9mm the laser would turn itself off. I had to turn the laser back on after each firing of the gun. This gun is used for home protection and the laser makes acquiring a target very fast and I put the red dot on the target and pull the trigger.
I bought the Sig version because I had just bought a Sig Sauer 556 rifle and wanted to stay with the brand name for my accessories. Upon receiving it I decided instead to put it on my .40 Springfield XDM. The fit is okay but not perfect, in that the way the laser mounts to the rail does not allow it to butt directly against the front of the trigger guard, causing the front of the laser to be about even with the end of the barrel.
With a little research, you can find the name of the company that makes a lot of Sig's accessories. I found the identical model for about $8.00 less. For the extra few bucks, I would rather have Sig behind the product. Now, more importantly, there is a bigger unit with a high power light & laser in one. It looks nice, and gets decent reviews, but I had to try this unit just because of its shear micro size.The unit is awesome!
The first one I got died quickly. After maybe 15 rounds through my SS P226 the laser went out. I tried to replace the battery but it was still dead. I requested a replacement from amazon and had it in 2 days, no problems. The new unit has performed flawlessly for well over 1000 rounds and counting. The battery life is at maximum 20 minutes or so. I guess that is my only complaint.
Wish I could return it.
I mounted this on my M&P; 40 and loved it.The laser is very powerful and it Fits great on the rail. And it fits in my N8 tactical holster with it on(Best holster ever BTW). But this thing was designed badly. Just a simple bump of the button turns on the laser and the battery will be dead in a matter of hours. The batteries cost around $6 to replace. I'm not gonna be spending $6 every couple days to keep the laser active.
Having a mini laser on the rail, and still have full holstering options! Life is good!! !
Answer: no