So I just picked up an M&P C.O.R.E. in .40 with a 5" barrel. Took me FOREVER to find it! Anyways I want to run fiber optic sight in the front and a solid rear in the back. But because of the cut for the red dot the rear sight is different then just the regular M&P rear sight (pics below, 1st is the CORE). Does anyone know of a rear sight I can buy for the CORE that is all black like the dawson. Thanks in advance for the help!

-Kyle