considering how small a firing pin is it's a wonder that they don't break more often. All it takes is an air bubble or some small metallurgical fault. the good thing is that replacements are cheap and replacement is a simple task. When I've has a spare on hand I've actually replaced them at the range. I'm sure Midway and Brownells carries them and I'm sure you can get one from Ruger's parts online. Unless the bolt is damaged, it's just a simple drop in part.
PS. The part drops in but it needs to be fitted using a protrusion gauge ($29 tool from Brownells which can be used for any firing pin replacement) so it does need some fitting.
PS. The part drops in but it needs to be fitted using a protrusion gauge ($29 tool from Brownells which can be used for any firing pin replacement) so it does need some fitting.
