Would like your opinions of this Remington 1903-a4

[M94/14]

The barrel has had a front sight base on it at one time, you can see the wear lines in the pic. I don't know if 03A4's were originally assembled with barrels where the front sight was already installed, and then later removed, or installed without front sight base from the outset. Not sure what would account for the wear. Barrel replaced??? The stock appears to me like it may have been sanded, but not sure due to the pics.