Originally Posted by Nighthunter
have you tried Rockstar Tactical? I've found replacement sights for my 8.1 there... not sure about the T8, but it could be worth a try.
I have gone through their whole catalogue a few times. They have sights for the 8.1 but not the 8. I assume 8 sights are so hard to find because they are out of production. My best bet will probably be just to buy aftermarket.