https://www.titleist.de/teamtitleist/team-titleist/f/golf-clubs/34275/716-cb-tour-issue i bought a very rare set of tour issue Titleist 716 CB irons. These are from the tour department and do not have serial numbers. The set is 3-PW with Nippon Modus Tour 120 Stiff shafts. I bought the heads separate, the shafts and grips (4-PW Golf Prideen-USTelligent Community 10https://www.titleist.de/teamtitleist/thread/165574?ContentTypeID=1Fri, 26 Aug 2016 20:37:17 GMT9ab519fc-5311-4952-85cd-0a0ceffb73fb:88cfdd87-6418-4839-99da-f567b0977cd8CSondermanMy set of CB have all the word &quot;tungsten&quot;<div style="clear:both;"></div>https://www.titleist.de/teamtitleist/thread/165059?ContentTypeID=1Tue, 16 Aug 2016 16:52:53 GMT9ab519fc-5311-4952-85cd-0a0ceffb73fb:e53620da-6e8f-4c51-ba83-d2b308cc42a7Modesto AYes it is real, I also bought a set of CBs and some irons have the word &quot;tungsten&quot; stamped on them<a href="http://www.titleist.com/discussion-images/jpg/teamtitleist/cfs-file/__key/acushnet-telligent-discussions-attachments/discussions-06-34275/crdghjhi9dohyndfjlpz">www.titleist.com/.../crdghjhi9dohyndfjlpz</a><div style="clear:both;"></div>https://www.titleist.de/teamtitleist/thread/164960?ContentTypeID=1Mon, 15 Aug 2016 10:00:06 GMT9ab519fc-5311-4952-85cd-0a0ceffb73fb:ec172471-7b19-42b3-bbe9-0ec77f9c674719holeThe 716 CBs all have tungsten weighting co-forged in the heads in both the heel and the toe. This is nothing special for tour irons, it is in them all.<div style="clear:both;"></div>https://www.titleist.de/teamtitleist/thread/164839?ContentTypeID=1Fri, 12 Aug 2016 19:03:39 GMT9ab519fc-5311-4952-85cd-0a0ceffb73fb:c12ddd6c-fbde-413d-8522-4d6af87c3354PRohe@csonderman. I have never heard of tungsten being introduced into the p-8 iron in these clubs. I look forward to reading what others thoughts are.<div style="clear:both;"></div>