Unfortunately, I must agree with the others - the rifle has been pieced together with mixed parts. The stock is not original and the RLB stamp is faked. I highly suspect the stock is aftermarket. A boxed RLB stamp is too early for the rifle, in any case. A correct stock would have been a "straight" one without grasping grooves and a "spread" R L B
Few of the parts are R-marked (there should be an R stamp on virtually all the major metal parts) and the light gray finish was probably done by a former civilian owner. Below is a picture of what an original Remington should look like. I can post pictures of individual original R-marked parts, if needed. The rifle in the picture is quite a bit earlier, but your rifle, if original, would have looked basically the same.
Unfortunately, although a good "looker", the rifle was overpriced quite a bit and represented correctly, IMHO.
https://www.milsurps.com/images/impo...standard-3.jpg
https://www.milsurps.com/images/impo...standard-4.jpg