Just the time and labor involved in boring it to 7.9 and the modification of the adjustable rear sight to a fixed rear sight dissuade me from thinking a hump job along with a recoil lug being placed in the stock ....
As collectors we base originality on trends. These have specific trends that they follow and this rifle breaks nearly all of them. As to “who would do” such a thing and sell it so cheap, that isn’t a valid argument. One of the most prolific fakers lives in central Texas. He could easily have made it and sold it to an unsuspecting dupe, dupe dies from Covid, dupes family pawns the gun. But you got it cheap so no big deal. The serial on the receiver is clearly not HK font.
I'm finally able to see this on something larger than a phone, and I agree with RyanE and mrfarb, there's alot I don't like about this one. Short of making a pedantic list of 'NOPEs,' suffice to say that it is full of aspects that pretty much scream 'fake.' I'm really glad you didn't pay much for this one.
Dave . . . .
Just for giggles, look directly at the muzzle crown, and see if you can detect the barrel “wall” as THICKER on one or another side!
I’ve yet to see a Carcano with the bore in the center of the barrel!
I checked the barrel from breech to muzzle it is indeed chambered for 7.9mm //// the rifling is not new //// tomorrow I will go to my local range, tie a string to the trigger, stand back, and attempt to fire 5 standard ww2 German rounds from it ......