This is a Uncle Mike's Hip Holster known as the Cordura, model 7016-0.
The ambidextrous hip holster with pouch easily converts to right or left handed use. The reversible belt clip (belts up to 2.25" wide) lets you wear outside or inside your pants.
Features:
Secure – Non-stretch Hook & Loop retention strap and molded thumb break
Spring steel belt clip
Size 16 fits 3.25-3.75 barrel medium and large autos