At the bottom of the “Buried in orders” message near the top of the page, it says that online firearms sales will resume once they have updated their process.
http://www.cheaperthandirt.com/
Not to me they won't. I updated my purchasing process and it doesn't include suppliers that respond to crisis with the sudden claim they don't sell firearms.
I've purchased many items from them in the past. I will never purchase another item from them. There are too many suppliers willing to support the 2nd amendment in all situations.