Product Description
Factory Ruger Mark IV 4 Firing Pin
Will fit anything** MARK, yes, even Mark I, II, III
**however the very early years of production ('49-'52) could differ, so look closely to be certain if that is your case
We have been solving some LIGHT STRIKE issues with these new pins in older pistols
Part #9 in Standard Mark IV manual, #7 in 22/45
