I came home from the range to clean my new backup m&p9 full size. The one that i carry every day has given me zero issue--100% reliable with 2000+ rounds through it, and no dreaded "barrel unlocking" issues. After purchasing this backup gun, i went to the range and fired 250 rounds of various ammo ranging from UMC, WWB, Remington golden sabre 147grain. Accuracy was great at all ranges 5-25 yards. When i went to clean the gun, i discovered a a chip in my locking block:
Now, my go to m&p9 has a slight "dimple" in the same area and according to my research that is "OK" as it is a byproduct of the injection molding process.
However i think as the photos indicate, this is something more.
Any input would be appreciated.
In case the pictures don't come through, here are the links
http://www.flickr.com/photos/70217458@N04/6377824523/
http://www.flickr.com/photos/70217458@N04/6377824581/