I see you got the tube out. thats great. Did the housing get damaged? I have a method i came up with that works everytime and makes removing the tubes from the housings very easy, or at least a lot less difficult, and the housings come away without any damage except two littlle modifications that are neccessary to remove the tube. after removing the tube, the two tiny modifications become mere cosmetic issues and can even be made to dissappear with a tiny bit of epoxy and a bit of touch up paint. There are quite a few specifics and stepsto the method so if anyone is interested in removing the 10160 tubes from the dark invader owl or nitemare lines of monoculars and dont want to demo the housing in the process, send me a PM or e-mail and ask me how.