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drshame
11th February 2006, 22:32
I need a few measurements on a stock, non-series 80 Colt .45 firing pin and FP Stop to track an issue:

Total overall FP length:

"Shoulder Width" where it protrudes thru the FP Stop. Both at the base where it comes out of the FP Stop hole and the end width where it's actually contacted by the hammer.

Firing Pin Stop Hole Width.

Are the actual specs online anywhere?
Measurements greatly appreciated.

Hunter
12th February 2006, 00:41
I will be honest the best reference to firing pin specs (and all 1911 specs) is Jerry Kuhnhausen's two volume 1911 shop manuel. The firing pin specs are in the second volume on page 141. These two books are where I get most all my technical info about the 1911. Total firing pin length 2.290" to 2.296" shoulder through the firing pin stop is .148" to .152". Hole in the firing pin stop around .155". depending on firing pin diameter that goes through that hole.