Just checked it has an integral upper tang.
Flyer
I'm really glad to hear that, we wound up welding more than a few into a solid configuration, they WERE prone to loosening up. IIRC, it was an "invisible repair",...didn't screw up the color case (C,Sharps uses Cyanide CC),....once welded, the screw was dropped in on Loctite Red and peened from the bottom, or welded,.....been a while, but I think that was the drill.
Tech tip,....stock a spare firing pin.
Our very own Ranch 13 can give you more '75 owner operator savvy. I just about had him convinced to sell me his,...but he WISELY hung onto it.
GTC