Yesterday I had a piece of the frame break off inside my M&P 22 (original, not compact) and wanted to share with you all. Thankfully this happened at home and not while the gun was being used! I had removed the magazine and was clearing the action before transport; as the slide slid forward to resting position a chunk of metal fell out through the magazine chamber.
Here's a
link to high-res pictures of the damage.
There's a cast metal tab that sits in front of the internal hammer and acts as a hammer stop. It is cast as part of the left side of the frame and does not attach on the right. It looks like a stress crack formed in the corner that attaches the tab to the rest of the frame, and after enough hits from the hammer it finally gave up. I'm not sure if the root cause is a casting fault, a hammer block fitment issue, or something else. There's a little indent in the base of the hammer that looks suspect. I will be sending it to S&W for repair.
This pistol has fired about 3500 rounds, nearly all of which have been Federal bulk 38gr CPHP. It has treated me extremely well up to this point. I'll update this thread when I hear back from S&W.
-Laird