I have never used the ND-3`s, but have owned 23 of the Nc Star lasers. Their Red - Green lasers are real good for the price, I would say. I like the fact they use the 3 volt battries which last a very long time. You can also mount them by simply useing a 1 " scope ring. The Red and Green dot seem to have the exact same point of impact. What I don`t care for. Both dots are 4 " at 100 yrds. would prefer 2" or less. I use the laser with 3 rd. gen. nite vision and even the Red laser is brighter than I would like, I can see it on woods line 1/2 mile or farther away, and the beam seem to go forever when shined into the sky. If your after max. brightness get a Green laser.
