Suit of Gun Buttstock Recoil Pad with Gun Sling Strap. 308.357.30/30 12GA 20GA

12GA Shell holder Shotgun Sling? :This sling is specially made for bullet models such as 12 Guage. Note that 20GA and 16GA are not available. 20GA Shell holder Shotgun Sling? :This sling is specially made for bullet models such as 20 Guage.