[ArmyCop]

Another forum posted where the first slide lock (M&P) was a little too slim and said S&W redesigned & it's better on the new pistol's coming out now. Also said you can call S&W and they will send a replacement if you have the old one.

I haven't noticed any problems with mine so I'm not planning on calling.

 

[choochboost]

Yes it has been redesigned, but I don't think they will send the part out.

 

[mad212]

Took me months just to get the extended slide release, I don't think you'll find a rep that will send any more parts out.