Your front-sight is not a 1903 Springfield sight. (Looks cheap commercial).

(FWIW - I also have a Krag bolt with the 'star' stamp, shown below).

You have a rare rear-sight base (1898 carbine). Your leaf (made for the early 1903 Springfield) is relatively common in the loose state.

I don't believe the 1898 base and 1903 leaf would have been put together by a U.S. Armory or Depot.

There is no Krag hand-guard that works with your stock and rear-sight combination.

If you have doubts and believe this to be a rare Krag, you might want to have a conversation with Joe Farmer.

But, I suspect, your Krag is a combination of parts put together by a surplus dealer, like Stokes Kirk and others.

Could your barrel be a re-used 1903 Springfield barrel? It appears smaller in diameter than the stock's barrel-channel.

Another possibility is that it is a Krag barrel that has been reduced in diameter. The diameter of the barrel appears greater in the area below the front-sight.

The N.R.A. stamps are interesting. (BTW - The NRA did not buy or sell Krags). The DCM civilian sales once required NRA membership.

It would be interesting to compare your N.R.A. stamps with those that appear on 1903 Springfield rifles (front tang of trigger-guard) that the DCM sold to NRA members in the pre-WW1 era. It appears your butt-plate has been stamped more than once.

The stamps appear on your stock and butt-plate and may not be related to the present barreled/action that resides in your stock.

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