Re: Pics of USO illuminated reticle? - Mil Scale GAP
If you're still undecided, have them use the main tube that is designed for the illumination, but without the illumination installed. Then if you find that you really need illumination, you can send it back and pay to have it installed.
I had a buddy recently tell me that they'll use the different tube design at no extra charge. (Not sure how valid all this is, but this is what I was told.)