'RedLeg0811': I added more information to my previous post.

It is very likely that "N.J." marked butt-plate is for New Jersey National Guard.

Be advised, however, that your model 1899 carbine, #226798, was likely built in August to November of 1899. It was probably accepted for service in 1899. It is improbable the stock it now has, with a 1901 'acceptance cartouche', is its original stock.

It is likely your carbine was updated or refurbished at some point. The serviceable parts, 'wood' and 'metal', were not kept together during the armory rebuilding process.

Most Krags are not as they left Springfield the first time.