Originally Posted by
Iraqgunz
So basically if you chamber a round and then attempt to extract the round manually, it will not extract? If that is the case I would think that the chamber is tight.
I assume that you are lubing the weapon properly? Not just a few drops but actually getting the BCG wet? If not, you should. As well as applying some lube to the top and sides of the charging handle.
I would still contact S&W and explain what the issue was in the past and that you are having more issues and they need to make it right. If that all fails then by all means I would sell the upper and get a BCM upper. They can be had for a good price right now.