I've got lots of milled C1 mag catches and early C1 "beehive" body lock levers if anyone's in need. Plus a sprinkling of other parts. Just ask with your needs and I'll be glad to have a look. I have a fantastic reproduction C1A1 with an early Enterprise receiver and Australianicon barrel in the early 1990's that I still have and shoot. Bruce Dow in Florida installed the barrel and it's an absolute tack driver.