This is a BLACKHAWK Belt Holster known as the Flat, model 40FB02BK.
The Nylon Ambidextrous Flat Belt Holster hugs tight against your body" offering a low-profile carry option. Fits belts up to 2" wide and features an adjustable and reversible thumb break.
Features:
Fits most small- to medium-frame and medium- to large-frame autos and revolvers
Ambidextrous design
