Quote Originally Posted by painter777 View Post
Yours pictured below, look for the nearly blasted away letters SG stamped on the upper right rear... below the top receiver lug.
It could be stamped sideways with the G above the S in a vertical position. Not the norm, but sometimes seen this way.
I swear that I see a sideways (vertical) SG when I zoom in on that same area that Charlie mentions. Also your hammer pin is in from the wrong side, it should be inserted from left to right.