Easy way to tell if it is an original 03A4
Post a clear photo of the rollstamps by the forward hole in the receiver. The s/n on an A4 would be offset so it can be viewed with the scope base on; we'll be able to tell from the photo. S/n doesn;t start with a 'Z' by any chance, does it?
If it is, how'd you like to quintuple your money?
Also, the 03A4s were parkerized with the front sight off. Is the area ofthe front sight parked?
Re: the bolt not rotating, you mean when work the bolt and try to lock the bolt forward and rotate the handle down, it contacts the stock, yes?
03A4 stocks were relieved to prevent that