"I know several of us have had problems with our 9mm full cap mags and needing the 9mm3 followers. I called glock on 1-22-03 and asked how I go about ordering 20 for my mags. The customer service guys told me to fax in an order "...advised place a part order using part number - SP01812 and specify 9mm3 followers. Cost: $1.00 each"
I faxed in an order to (770) 433-8719 on the same day with my credit card number and return address info. Yesterday I recieved 20 brand new 9mm3 followers"