Many thanks to everyone for the great information. Very complex info, you guys are really experts.
I don't think it was ground down, here is a good picture of the top. What makes it a military instead of commercial? There is a small mark on the barrel, I didn't note what it is but it is very faint.
Also I made a mistake, the 219 is on the barrel and lower, the pivot pin and other pieces are marked 19. Except for the 33 the top toggle. I don't understand 219 serial number, it does not appear to have any suffix mark anywhere?
I haven't cleaned or oiled it yet, is there a serial on the firing pin too? I've ordered a new mag so I can run this a little, really looking forward to shooting my new gun.
Darrell
