studs all others include studs or barrel bands depending on type 1 swivels ... magazine tubes .630 675 dia 410 bore shotgun black 515-599 12.49 magnum band for ... black 750-638 11.49 magnum band for barrel .585 635 dia black 644-332 14.79 ... magnum band for barrel with .675 725 dia black 118-076 15. ... 79 magnum band for barrel with .700 750 dia black 650-630 15. ... 79 magnum band for barrel with .750 800 dia black 936-974 15. ... 79 magnum band for barrel with .775 825 dia black 726-129 15. ... 79 magnum band for ferrules or barrels .500 550 dia black 583-028 13.29 ... 13.79 remington 7600 six 740 742 and barrels with dia .645 660 full band black 333 ... 923-255 9.79 side by side double-barrelshotgun black 871-662 17.99 sling ... swivel for most pump semi-automatic shotguns requires cap modification black 327- ...