Firing pin issues? / wear issues

[George9]

If the primers are not leaking gasses.. I don't see that they are. I don't think I would worry to much about it.. I have been shooting for over 40 years but not with Glocks or M&P's and I only have one center fire M&P a FS .45 I have looked this up online and it does in fact seem that the M&P's do leave a dash line on the primer dimple.. As long as it's not cutting into the primer again I don't think you have to worry.. Now with Colt's and most 1911's this would be considered a timing issue with lock up.. We use to change out springs for the load we were shooting and adjust the springs heaver or lighter till the primers just had a dimple in them.. All my Colt's don't leave a mark, all my S&W gen 3's don't leave a mark and so many of the other guns that locked up also didn't leave a mark.. What can I say I'm only posting the facts as I know them but the only striker fired gun I have is the M&P .45.. if it was me I would find out the lbs on the org. spring you have in yours and get one 1 2 and 3 lbs heaver and see how the primer looks..Maybe the striker spring is very heavy and you will need to go lighter with a recoil spring.. Only trying it will tell.. Midway or Brownells should be a good source. Most of the people here post that this is normal for striker fired M&P guns.. I would go with what most of them are telling you.. I'm old school and never really got into Plastic ' polymer" guns.. Till a short time ago.. I'm still old school and like my all steel guns.. Just trying to warm up to the new guns. That's the reason for me getting a M&P.22 and a M&P.45. Ya I know the M&P.22 don't count as it has a hammer and it's a blowback rim fire gun.. G

 

[christopher002600]

Smiths answers for me...

Well I called smith and wesson and they said that all m&p 9s have a small notch/groove below the firing pin. It is there for a reason there for when you shoot your gun it will look like it tear drop shape in the cases he said. So I asked him about possible weak recoil springs and he asked me if I had any miss feeds for jams of any kind I said no. He said you will start getting them and you'll know you need a recoil spring. Usually they last in the 10,000 - 15,000 fired shots. This is all that smith is telling me. Now I have not had any issues far as the guns goes.