Both my best friend and myself are looking for a replacement piece for the sight dovetail for our GPRs. I have what Brownell's sells - only one size. It fit my Winchester (Mikoru) 95 perfectly but doesn't fit the GPR or my Uberti 74 - it's too large (wide and high) for either of them.
I have an e-mail in to Lyman, for the past week but haven't received an answer. Does anyone know of another slightly smaller sight dovetail replacement? Or do I have to order the one blank side triangular file?