1903 Mark 1 was a top secret in the early 1920's. It has a hole in the side of the receiver so the rifle could be turned into a semi auto when a Paterson device was added replacing the bolt The idea was caned so the Mark 1 variant is one of the more collectable rifles. It is in very good condition. Bore is nice Barrel is a 8-42 4 grove. Stock is a finger grove style. The CMP had 100 1903's for sale so you had to be picked from a lottery to buy one. This is one of those rifles so it will come with the CMP box. Asking 800.00$. New price 700.00$ Or trade for a nice 1911.