The Maxpedition Rollypoly MM is a rugged dump pouch designed for carrying ammunition. When unfurled, it can fit up to seven 30-round M4 magazines. It also serves as a convenient place to stash your empty magazines and spent shotgun shells. When empty, it rolls up into a compact shape for convenient storage, but expands when filled to provide an impressive amount of storage space. Its Velcro-fastened flap can be used as a lid, or tucked away for easier access. The pouch attaches to MOLLE or PALS webbing using three-inch TacTies, or slides on to a belt using the built-in loop.