Markings on a DWM

[MD650]

Originally Posted by DavidJayUden

Does it appear that the date has been ground off? Any other proofs or acceptance markings? Stock lug? Serial number?

No, there is no trace of any date on the gun.
And there is only that marking.
There is same serial number on all parts on the gun except the barell.
According to one source the barell has been changed.