Travis Geary .★★★★★
We used Silver Bullion for our most recent purchase of precious metals within our Solo 401k. They had a good supply of silver coins and bars in stock to choose from, and their bid-ask spreads were better than what we were finding in the US. If you have to store your metals at a depository this is a no-brainer... it's a good service, a secure facility, and it helps limit your geopolitical risk of holding metals in the US.