That number is so deep that you need a grinder to do a good job. Any police department can raise serial numbers.
So..bs meter on 12.
Even a grinder alone won’t work, because the original stamping leaves readable marks in the underlying crystalline structure of the metal UNDER the grinding zome. So first you have to peen the crap out of the number with a punch, and THEN grind it off. Very few crooks no this, so guns are commonly traced even if they have ground off the visible numbers.
Fun facts to know and tell.
scraped off with a screw driver huh. are even saturday night specials made that shoddily?