You have an interesting Krag firearm that appears to have had the stock cut down from a rifle length stock because you can see the filler block under the barrel inside of the front band. This was done on school guns that were reconfigured to be able to put a bayonet on but the front of the barrel is not turned down to accept a bayonet. It's not a filled cleaning rod channel. Are you measuring the barrel length by dropping a cleaning rod down the barrel until it hits the closed bolt? The measurement is important.

It would also help a lot to see pictures of the receiver on the left side for the serial number and model markings as well as the stock on the left side to see the cartouche marking, if any. Also, what rear sight is on the gun? It looks like a 1901 sight. Pictures of the rear sight would help. I'd also be interested in knowing why it doesn't have a front sight now. The muzzle looks rounded like an uncut, original Krag but it may have been a cut down barrel and re-crowned without the replacement of the front sight.

Many questions but this is what we need to know to help you out. Please post more pictures as well as the full serial number.

And thanks for posting this interesting rifle. You'll get many opinions as to what you have and what to try to do with it.