[cyclone336]

I bought my M&P9 in April of 2008, and I have broken two strikers (one in December and one last week). They both broke at the front shoulder where the spring cups rest at the change in diameter. The breaks were perpendicular to the length of the striker due to fatigue. For reference, I have shot approximately 4000 live rounds through the gun, and I have done one to two hours of dry fire drills every week with it.

I have never owned a striker fired handgun before this one, so I'm not sure if this is normal or not. Has anyone else encountered this problem? Is there any way to fix it besides having a spare striker on hand?

[Shawn Knight]

It happened once on mine after about 200 live rounds and maybe 100 dry firings. S&W sent me a new one and told me to use a snap cap. Just keep a spare striker. Thats what I do.

[raz-0]

I broke my first striker before ever even firing any ammo out of my .40. Granted I was waiting like 12 weeks for my bladetech holster to show up, and I dry fired it a lot hoping to break in the trigger some and get used to it. It was probably in the neighborhood of 8000 dry fire cycles on the striker.


I had Dan do a trigger job on it, and these days I do a handful of warmup draws on the timer with it cocked, and the rest of the time I just work the trigger without cocking it. I haven't broken another striker.


FYI, there appears to be four version of the striker at least.

1) initial version, L-shaped, no relief cut around the bulbous striker head (where the OP is talking about).

2) L-shaped with relief cut (what I had break, second one made it about 8000 rounds live fire before the spring gave out and I replaced the whole deal)

3) J-shaped with relief cut (what I got when I bought my replacement and a spare about 12-14 months ago)

4) J-shaped with relief cut, and bulbous head has been slab sided.