Krevis Rifle Buttstock Sleeve is made from durable heavy weight elastic that fits snugly to the buttstock of your firearm. The cartridge loops are uniformly sewn for in a 5 easy-access position, so your ammo is reliably in place when you need it. Installs in seconds on most rifles without slipping, and is designed to with stand years of outdoor use. Product : 3.5" x 6" holds 16 rounds.