Blackhawk Gear is used extensively by our military; designed by U.S. Navy SEAL Mike Noell, this gear will withstand the toughest use in the harshest conditions. Each product was designed with the end user in mind and the demands that would be placed on the product. This is the gear used world wide in ops missions and has been proven to be the best gear available. This BLACKHAWK! Shell Holder is an elastic sleeve that slips over most shotgun stocks for quick ammo access. Ammo is always in reach because elastic sleeve slips right over rifle or shotgun stock Sewn-on elastic loops keep ammo in place and organized Open style Flap models have hook and loop Cordura flap