I have not shot at "Wings and Water" (gay ass name btw) but know a couple of people with machineguns who have been members for a few years and they tell me it is M-16 friendly. I know that they have been there within the last year shooting the M-16s with no problem.
But in any case, I was there to check out the range (actually on the day I originally posted) and saw a few ARs, AKs and FALs with owners happily blasting away. The 500 yard range was closed, hopefully just temporarily, but many people were shooting at the 300 yarder.
They do have a sporting clays range but it was not, nor the most popular availible venue.
I will be joining soon hopefully as it is the only range, albeit a little rough around the edges, in our area with the variety of shotguns, pistols, plus a long range.
Maybe I'll splurge and get a .50 now.