If you go to the Blade-Tech website and look at the "Revolution", it has the S&W, M&P stampings - it is the holster provided by S&W in their carry kits. It also happens to be $29.99, half the price of their OWB, Black Ice, etc. I borrowed one from the range officer at a recent concealed carry match to try my new 9L CORE, and it worked perfectly.

BTW, I almost ordered a Blackhawk SERPA based on this post. The RO said they will only allow the Blackhawk SERPA to be used at the range if the finger lock is disabled. Evidently there have been accidents from people unlocking the holster with their trigger finger, then maintaining pressure until the trigger clears the holster. This seems unlikely, but under match pressure I guess it is possible.