This is a Sticky Holsters Mag Pouch/Light Holder known as the Dual Super Mag Pouch, model DMP.
The Dual Super Mag Pouch is a magazine and accessory holder that can be mounted OWB by using their A Frame design to attach to the belt. You can also keep the A frame closed and carry IWB or in a pocket. This is used for full sized and double stack magazines" a flashlight" tourniquet etc. This has two magazine pouches sewn together.
Features:
Ambidextrous
American Made
Latex and allergen free
Multi-Use and Multi-Fit
Part of a modular system
Built in pocket