What butlersrangers said is accurate. I have a model 1898 that was modified by the Benicia Armory and have the original bill of sale from the U.S. War Dept. dated 1929. It states that it was modified with a carbine barrel and a model 1903 front sight and was sold to Mr. A. Arata of Berkley, Calif an " NRA member " for $3.50. I have an additional letter/invoice from 1930 where Mr. Arata purchased 100 rounds of ammo for $ 3.15. The letterhead on both invoices say War Department, Director of civilian marksmanship. I should clarify that the invoice states " cut to carbine length ". So, it's not a real carbine in the eyes of a collector but it is according to the DCM in 1929. I also would like to know the value of this orphan with the paperwork proving it's provenance. It's in really nice shape but Agent Orange has taken it's toll on me and I can no longer shoot so it's time to let it go to someone who will appreciate it.