My high mileage series 80 Gold Cup NM pitched its front sight blade some time ago. I was unable to recover the sight. I dropped the 45 off at a local smith who installed a replacement sight blade (brand unknown). After firing only several mags of softballs this sight blade was also ejected to parts unknown. Though trijicon does list replacement sights (#ca-16) for the GCNM, I would prefer to keep the "stock" Elliason sights, provided that a Colt front sight blade can be located. Anyone know where I can get the unique GCNM front sight blade? Has anyone tried the trijicon #ca-16 adj. night sights on a GCNM?