S&W factory MWO and M stamp on 686’s

[Greyman50]

How critical/ important is it to get S&W factory MWO for the firing pin? Talked to few people and got different opinions. 6” that will not be shot in matches, maybe 10 times a year.
Thanks for the replys.

 

[Hapworth]

I'd skip it based on your expected use.

The original issue was probably overstated, and is thought attributable to ammo no longer on the market.

Plenty of folks are running non-M L-frames without issue.

I used to advise it for anyone planning on making the L in question a fighting gun, but now I suggest running it a while with a mix of ammo and seeing what happens; if no issues, leave it be.

 

[Greyman50]

Thank you.