I have one that I bought in March that now has close to 3500 rounds thru it and the pin has began to mushroom. I called Mossberg and they initially wanted my to send the gun in, I asked for a supervisor and explained the process for swapping it and he agreed it would be the most cost effective to just send me a couple of pins. Kudos to her!
Have any of you guys been looking at you pin, if so have you noticed it mushrooming? I have seen this with 935s in the past, but this is the first 930, even though they use the same pin.
I am specifically interested in the JM Pro and Rhythm series pins, I wonder if they are different like the gas piston and magazine tube?
I also know that if you use Slip 2000 piston and choke cleaner, you will no longer have any finish on your piston, but it will be sparkling clean!