Does anyone know if fire sights are available for these 2 guns.
I have spoke with Williams and all they have (had) are front sights
for a standard S&W revolver. The sights in question are discontinued, but still have stock. That said no connection as to specific models, just pin side front.
Fire Sights are nothing more than Fiber Optic sights - a favorite among competition shooters - who usually prefer a plain black rear and a FO front - at least that is what I have on all my gun game revolvers.
Many manufacturers - but Dawson Precision can give you both front and rear sights for you Smith.