The Carry Elastic Cummerbund is a 4" elastic cummerbund designed to hold eight AR magazines (4 cells on each side). Though these slots were intended for AR magazines, they can also accommodate a wide variety of other magazines, medical supplies, radios (of similar size to the MBITR), munitions, or pretty much anything you can fit in them. The girth of the CEC is fully adjustable at the front and rear. This product will work with a wide variety of plate carriers with cummerbund slots in the back.