Brown Leather Hunting Buttstock for Smoothbore Weapons for 6 CartridgesA high quality buttstock for smoothbore weapons is made of leather. There is a magazine for 6 cartridges for smoothbore weapons of 12, 16 caliber. If you need advice on which coupling to buy and which material is best to choose for a weapon, call the managers of our online store and get useful information. Materials: leather. Care: manual cleaning with a brush and a damp cloth. Caliber: 12, 16.