Browning Invector 12 ga. choke tubes. Mod. And IC with wrench. $25.00 shipped.
(http://i31.photobucket.com/albums/c372/woody402/974B5977-A268-4FF7-BE7A-2E016C1CDECE_zpstl4hxj7x.jpg) (http://s31.photobucket.com/user/woody402/media/974B5977-A268-4FF7-BE7A-2E016C1CDECE_zpstl4hxj7x.jpg.html)