Ok then you have several options.
Contact Joe at Night Eyes, I heard a rumor that he has a new 850nm Illuminator that is about to hit the market. It has a standard 1" body that will fit in an offset mount for rail mounting and it uses the 18650 battery. It is a good illuminator.
There are a couple of other brands available as well. Sniper Hog and EWT both have them, or they did the last time that I looked. EWT will sell you a 850nm module for the 100 series scan light, that's what I did but that light is not as bright as the Night Eyes or the Sniper Hog. I own and use all 3 of those brands.