Yes, and it's glorious!
I've made a thousands on GB dumping excess EBRs, high-cap mags, ammo and such. I've sold SCARs for over a thousand more than I paid for them. Glock mags for 3 times what I paid. PMAGs for 4 times what I paid for them. Surefire 60-rounders for double what I paid for them and so much more.
The only things I haven't sold are things that have an NFA tax stamp like my Saiga SBS.
In a year or so prices will work their way back down as an AWB is going nowhere and you can restock at lower prices.
Instead of marveling at the absurdity of it all, start dumping your excess toys on there and cash in, as this won't last forever.
"Our contract called for 16 cases of rifles and ammunition for $10,000 dollars, not a machine gun...........That is our present to the General"-Pike Bishop