I have a sporterized Rock Island Arsenal 1903 rifle. I dont know much about these guns but I did test fire it to make sure it works. It has a redfield scope mount. The serial# is 4205xx that should tell you the production year if you know how to find info on these guns. Price is $150.00. Thank you! Just to clearify, this is an old hunting rifle with excessive finish wear. Its going to be a great hunting rifle to beat up but not a beauty contest winner.