I have seen them and while they are nice...they are also almost $500 (for the complete HG and light) and the light isn't all that bright or well-focused. I would much prefer to have any number of lights from Surefire, etc. mounted with a picatinny rail adapter than to pay the money Arsenal wants for their offering. Now with that said...I wouldn't turn down any SA M-7 (any variety) if you were to give me one or offer me one for a good price!