A much smarter man than I asked me a thought provoking question today. Is this Mark 23 adaptor niche so much of a niche as to be a phantom market? What say Ye? After all, how many Mark 23s are out there? We already have a viable inexpensive option available right here in River City. Why haven't those moved more? For the convenience and practicality alone of being able to use cheaper sacrificial illuminator rather than a 2000.00 collector piece, that ought to be worth the risk of a trial purchase. I like the minimalist design of the gg&g bikini style adaptor, but it feels like we're over-thinking this or the the niche is a phantom.