Doesn't Ruger have one? It's pretty easy to order parts straight from Ruger. Well, actually it takes a while to punch in the extention numbers and wait for a service rep if you call them on the phone. But the rear sight I ordered from them over the phone last week is already here.
Just go to their website. You can order directly from it or use the phone numbers it lists.
Some parts, like a safety, are restricted to being sold/delivered only to people like gunsmiths/dealers, who are qualified to fit & install them - so no one gets hurt or killed as a result of an untrained person attempting said repair.
I would think it a huge liability concern, for a manufacturer.
I understand that. He is perfectly capable & he has a part time gunsmith friend, but not a dealer...I told him he should have told her it's unsafe the way it is...That's why he needed the part. lol :wink: