Where are the SAM2 MAE Weights?

Hi! I'm simply looking to get access to the masked autoencoder weights used to train SAM2 for usage in a few different projects, including attempting to expand upon Voxel51's recent research with autoencoder error ratios.
It looks like they should be very similar to what is already publicly available with the Hiera MAE options on huggingface, but my assumption is that due to the much longer and more rigorous training regime that they should contain more information, which would be much more ideal for my use case.
Can't seem to find where I can download them; Huggingface has some of the baseline Hiera weights but none of the SAM2 MAE weights, and I can't find any mention of the model weights here on the github repo -- if anyone could point me in the right direction to where I can get access to them, I would appreciate it greatly; thanks!