Help identifying

[ehull]

By the style of the buttstock and the escutcheon in the forestock, this appears to be a Remington rifle made under license in Spain. These normally have a Spanish crown marking, as well as a date of manufacture, stamped on the right side of the frame. The "US" on the barrel is not original - this type of rifle was not used in the USA. (Note to viewers: if you click on the last image it takes you to more photos.)

[ehull]

Compare your rifle to the one on this website:

http://militarygunsofeurope.eu/listing/ ... ton-rifle/

You will see many similarities.

[ehull]

With no proof marks or government ownership marks, it is likely produced for commercial/civilian sale.