Disclaimr: More than a few jager bombs/rum n cokes into the evening. Take for what its worth...
I carried the M-9 daily for over 6 months but only fired about 300 rounds through it, and it sounds like the guide rod and or spring was put in backwards.
Try breaking it down and inserting it the other way. Also, pics would help.
I don't claimt o be an expert at the M9 (35/50 on my last AF qual...) Plus, I've been drinking tonight.
"This is not about land or money...but the one thing that no man should never be able to take from another man: the freedom to make his own choices about his life, where he'll live, how he'll live, how he'll raise his family. "
William Travis, The Alamo: 13 Days to Glory