I don't think so. I think it will be like it has been after every panic buy. There will be a glut of ARs for sale, at prices near what the seller paid for them.
After new prices have gone back down to the $800 range, you will still see ads such as: For Sale - AR15 $1700. I've got over $2000 in this, and it has been rarely used. I can provide receipt to show what I paid.
And those sellers will get furious when someone offers them $600.
This would be my guess too.
After things calm a bit and Biden does his crazy left wing commission thingy, it will be determined that the R's in the House will never allow an AWB to pass. In the mean time the economy will continue to suck. People will need money as opposed to overvalued investments.