[536thMP CO]

I have been reading on this forum about a potential problem concerning a notch in the locking block on certain walther p99, mine happens to have the notch.  Date code AC.  My question is, do i need to contact walther and demand to have them change it, or is it a hit and miss type problem?  Does anyone else out there have the notch, but are not having any cracks or problems.

 

[Catbird]

One of my P99s has the notch while the other doesn't.

I don't feel comfortable advising you what you should do, but I'm going to shoot mine just as if there was no issue with the crack.  

I am, however, going to inspect it very carefully during routine cleaning.  At the first hint of a crack, I will send the pistol to S&W for repair.