bronzedog adjustable leather buttstock cartridge ammo holder for rifles 12 16 gauge or .30-30 .308 caliber hunting ammo pouch bag stock right handed shotgun shell holder (brown, 7.62 caliber) bronzedog the rifle buttstock ammo holder is made of genuine leather and is designed to carry shells for hunting weapons. the buttstock shell holder is equipped with 6 slots for .30-30, .30-06, .308 caliber or with 6 slots for 12 (16) ga. you can adjust the fit with lacing. the shotgun shell pouch is made with double-layered leather for maximum durability. the buttstock comes in black, brown and khaki colors, designed for right handed hunters. this will allow you to keep rounds at hand. ref: 10200,10202.