I just learned something I have been searching for a while to learn and it is from an old post from butlersrangers from March 2013 in an old Krag forum post.

I recently was fortunate to find an authentic 1898 Krag carbine that appears to be all correct as an 1899 rebuild. It is wearing a nice 1901 carbine sight that shows excellent matching patina to the rest of the carbine. I was concerned that the slide did not have the tiny "c" marking on the left side, but the two other "c"s are clear and correct. I have been searching for a replacement slide with the "c" mark to make my carbine essentially 100% correct. I have not had any luck in doing so yet.

But, the 2013 post and pictures (copied from the post below- credit and thanks given) from butlersrangers shows that the 1901 carbine slide ladder has parallel sides and that the slide is NOT interchangeable with the 1901 rifle slide.

I pulled out my carbine and a Krag with a 1901 rifle sight and examined and compared them closely. The rifle slide has non-parallel ladder sides that allow the slide to shift as you adjust it to correct for drift with elevation changes. My carbine sight has a ladder that has parallel sides that do not adjust or shift for drift correction.  I did not know this or ever notice the difference in the slides or ladders.

I believe that the differences in shooting distances and the bullet weight often used for the carbines did not need the drift adjustment as the rifles did.

So, the fact that my slide does not have the "c" mark probably means that it has just worn off the slide because it was small and that part of the slide does get a lot of wear.

I feel better now that I probably do not need to replace the slide on my 1901 Carbine sight for my 1898 carbine.

Does this sound correct? I would like to know if the experts would agree with this conclusion or do I need to keep looking?

Again, I give credit and thanks to butlersrangers for the great educational post and picture that I copied.

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