Scott, in my earlier post I noted that Troy's own website has this description of the OP's rail "Troy MRF BattleRails provide an
uninterrupted rail extension and hand guard aligned perfectly with the host weapon’s flat-top receiver." That is Troy industries words not mine. Troy disagrees with you on that point. Here is the pic of the OP's rail followed by pics of my Midwest Industries Gen 2 SS and Samson/Rainier Arms Evolution rail, and a Centurion rail. One has a gap you can slip a quarter in. The others do not.
OP's Troy MRF rail with large gap.
Attachment 24638
My Midwest Industries Gen 2 SS rail
Attachment 24637
My Samson/Rainier Evolution
Attachment 24636
Centurion rail
http://stickman.rainierarms.com/gall...1024-Stick.jpg