Mine doesn't, my friend's does. I took a heat gun to it, and it does now. It's hit and miss. I was talking to the owner of smoky mountain concealment this morning, and he's designing an S holster right now, it may be done by the end of the week. My other OEM rival holsters are a better fit, something appears to be wrong with these first moldings. The S's dimensions are bigger than the normal Rival too, taller from the bottom of the trigger guard to the top of the slide, and wider.
Well that's a bit disappointing since I just got a nice custom holster for my rival but it still might be worth it to upgrade eventually. Just makes it more likely that I'll wait a little while.