Ruger won't sell the striker for the SR series, either. They will sell parts, like springs and cups, but not the whole striker. That makes no sense...if you can take out the striker to replace the springs, cups, or other parts, you should be able to replace the striker, but they said no (I e-mailed them to ask.) Ruger said they replaced strikers on an exchange basis...fine, I can send them one and they send me a replacement, or they can send me one with a credit card deposit, which will either not be charged or credited when I send in my old striker.
That would make more sense...and it would save them money, since shipping would be so much cheaper than sending them the entire gun for them to replace the striker.