A cute & handy short Krag! It should be very useful for Hunting and Plinking at the Range.
The carbine Stock and Hand-Guard are the replacement types that came out after 1899, in order to make refurbished model 1896 carbines more like model 1899 carbines. (The stock is not as valuable as the earlier style of model 1896 carbine stock).
The metal parts are 'cut-down' rifle. (Your Krag was assembled, as an Infantry rifle, at Springfield Armory around December, 1896). The present Bolt is a model 1898 Bolt. The rear-sight is a model 1896 rifle sight. The shape of the front-sight base and muzzle crown are not correct.
IMHO - A 'parts gun', but, nice parts with a large Fun Factor!