This is a Raven Concealment Systems Holster known as the Perun, model PXMPSH.
The Perun is their flagship outside-the-waistband (OWB) holster. It is the result of blending the best features of two of their most popular holsters" the Eidolon and the Phantom" to create a highly refined" exceptionally concealable holster.
Features:
Fits M&P Shield9/40 and M&P Shield 9/40 M2.0
Outside the waistband holster
