Some time back I participated in a discussion here about green vs red lasers. I had a green laser in which I had paid quite a bit more money then what a red laser would have cost and the green was no brighter. Several people seemed to be personaly insulted and hinted that I was a bold faced liar. Be that as it may. I put it on a 22 rifle and there it sat unused. Until one day I screwed it on a Glock 19 after putting in new batteries. Outside on a bright day I was surprised to see the green laser show up on the target brighter than the red! Wow! I fired 10 rounds then turned the laser off while I reloaded. Back on, the green did not show up on the target. I cleaned the lense. Still dim. I changed the batteries. Still dim. When I shined the laser on the wall of the shop, the green dot was surrounded by a softball-sized pattern of what I call sparkle. I have several lasers by both CT and LM and all have some sparkle but not this much. I cleaned the lense again, cleaned the terminals, checked voltage, then ran back outside to see if the green dot would show on the target. Still dim. I contacted LM and they were very nice, wanting the unit returned so they could make me happy. I found their customer service to be very friendly and prompt when I had problems with my guide-rod red laser. On Tuesday my laser arrived back home via UPS. It is now brighter than the red and has minimal sparkle. The enclosed paperwork says they replaced the dead batteries in my unit and cleaned the lense. That is what I did, too! Now, at least, I believe the green laser can be more visable than the red laser. However, I do not trust this laser. I have owned 2 LM lasers and both had to be returned. Not a good track record. I believe LM either fixed the unit and did not want to admit the problem or they found no problem and the unit is interrmitent. I suspect the latter. Either way, I'm leery. It will go back on the 22. Just some info in case you are having problems or considering the purchase of a laser.