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Compadres,
I am in the process of turning a butchered trapdoor rifle into a modified replica carbine. Can someone out there mike the dimensions on the front sight base on their '73 carbine? It looks like an easy part to make with a file. My plan is to solder on the base and use a dovetail cut in the top to hold a front sight. Then I can more easily correct for height and windage. Thank you for your time.
The base dimensions off my 1878 Carbine:
length; .400
width at base .300
base radius for a .750 barrel dia is .375
top width; .220
height ; .220 this is looking at the front of the base. It is trapezoid with the .375 radius base
the sight blade width on mine is .087 -.00 +.003 with the cross pin hole .160 or so above the base leg
cross pin dia; .087 My blade slot is cut quite deep, more than I would cut it if I were duplicating it.
your sight blade height will vary with type of rear sight, I have the carbine Buffington unit with the "C" stamp, so its correct for the 1878 rifle I have.