Marbles has two series of tang sights. It appears that you may have mixed them. Although I do have one I have to use, I greatly dislike the new series with interchangeable stems. For one thing, there is no overlap on the adjustments. One stem goes up to 150 and the next size starts at 150. Here is the Marbles list of the "Standard" (older series) and if you scroll down to the specifications you get the height range for each sight. This may help you in your choice. If you have the new series you just loosen the set screw at the base of the tang and pull it off. If you don't have the new one doing this will release a bunch of small ball bearings! Don't do it! Hint, the end of your box should either say Standard or Improved (ha).

I am not sure what you can do to return either of the parts that you have but even if not, I would take the loss and buy an original Lyman or Marble Tang Sight as the modern Marble sights have lots of slop in them in my opinion.  The old model Marbles built back in the day are far superior as is the old original Lyman.  I like the Lyman in that I have a dozen or so screw in apertures but my first hunting rifle sported a Marble receiver sight so I have a few with that thread.  I like the way the Marble springs up as well.  If you want to spend a little more, MVA makes a superb replica of the Marble tang sight and I am about to buy one for a C Sharps 75.  Just my 2 cents.  Tom

LR, what are you putting it on? Whoops, I see a Highwall.

I thought the New Marble's tang sight had, at least, some windage capabilities. Perhaps not?

LR, did you order the 009800 or the 009801? Should have been the 009801, which is much higher.

i order any needed parts directly from Marbles, and follow this article for dis and re- assembly
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