I heard organicann and buds & roses might have some left. That was week ago. So it might not be there. They released a limited supply. There should be more in a couple months
TGA doesn't actually sell seeds on their site, they have information on where to get them though. It's weird that one says out of stock though, I suppose it's because they also sell wholesale.
You can buy 9LB Hammer seeds from TGAs Loo his email is [email protected] he has other TGA seeds as well
If you live in Washington, California or Oregon you can buy them from dispensaries that carry TGA genetics