The AR15 Mag/Bottle Pouch was designed to offer you more carrying capacity at the ready! This pouch attaches to all Reese Chest Packs via the vertical back strap and snap. Sliding it in the back loop and the bottom harness loop allows it to ride even with your chest pack. This pouch has a magnetic closure for quick and quiet access. It holds two 30 round ar-15 magazines, a standard water bottle, your favorite night hunting light, or even your ecal