An August 43 RA barrel would most probably be original to your receiver.

The mark on the stock is a boxed [FJA]. Its the final inspection stamp and stands for Col. Frank J. Atwood who was in overall charge of contractor supplied items in the Rochester Ordnance District by that time.

Typically an ordnance escutcheon is stamped adjacent to the FJA (which may be boxed or unboxed). Also in the Spring of 43 Remington began stamping an "RA" in the same location. These latter two marks may be obscured by the Benecia Stamp, worn off or sanded off during the rebuild. Or possibly, if the C stock was initially used on an earlier rifle, the RA was never there.

I think a reasonable valuation would be about $3000.

Oh one last question. is the barrel 2 groove or 4 groove? this is just for my data. Thanks.

Regards,

Jim