OK, I was crusing around Glockmeisters website and I see a section where you submit your serial number and they tell you if there are any upgrades needed for your gun. So I bit and sent in my serial number. The next day I get a reply that states I need a extrator upgrade for my gun, the cost is 426 plus S&H. Have any of you heard of this? Is this like a recall? I wonder why Glock didn't contact me? I bought the model 23 new 10 years ago and it has functioned flawlessly everytime I pulled the trigger. I have contacted Glock via a fax as to this situation, but I was just curious if any of you have had to go through this?