The firing pin has a hard chrome finish and is made to mil-spec standards for use with AR-15 & M16 bolts and bolt carriers.
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Was in need of a firing pin, got what I wanted and reasonably priced.
Thank you, Barry!
Been buying spare parts for future maintenance/repair. This item is the same as the one I bought in the past that is now installed in my Middy, SPR and Dissi. Function perfectly.