'Bajr' - Your Krag's Stock is a model 1899 carbine stock in Italian walnut.
The stock's 'bolt-handle recess' has been altered to accommodate a model 1896 action. This is obvious, because the shape is not correct.
(This work was not done by a U.S. Armory or Arsenal. They did not alter model 1898 stocks to fit model 1896 Krags).

Your rifle's rear-sight is indeed the model 1902 rifle sight.
(Both of the model 1896 Krags, that I have, are fitted with this sight. This is likely the result of many Krags being rebuilt and reconditioned in the early 1900's).

It appears to me that your gun's metal and stock have been refinished.

You have a nice looking Krag that should be a joy to shoot and use, "as is".
Its 'collector value', (approximately $300), is not great, because of alterations and refinishing.

Original and unaltered Krag Stocks have gotten very hard to find and expensive. This makes it impractical to restore your Krag to its model 1896 rifle configuration.
It is too bad that someone altered an original carbine stock, which otherwise would be quite desirable.

I am not trying to rain on your parade. This is just, my honest assessment and opinion.

On the other hand, you can get endless hours of enjoyment using and shooting such a Krag. You are not putting 'wear and tear' on an expensive and rare collectible. "Sportered" Krags are often wonderful shooters!