Allen Company Allen, Basic Buttstock Shell Holder, Black Elastic Material, 12Ga (5 Rounds) 205 Allen's version of this classic shooting accessory is made from durable" heavy weight elastic that fits snugly to the stock of your rifle or shotgun without interfering with holding or aiming the rifle or shotgun. The cartridge/shell loops are uniformly sewn for in an easy-access position" so your cartridges/shells are reliably in place when you need them.