Per the Washington Post, new sanctions limiting the importation of Russian-made AK-47s have led to a rush in purchases:

Thirty-six hours after the Obama administration banned importation of the classic brand of AK-47 assault rifles as part of sanctions against Russia, a Maryland dealer specializing in the weapon took stock of its inventory.
There was nothing left.
Laboring almost nonstop, workers at Atlantic Firearms in Bishopville, a Worcester County community on the Eastern Shore, had shipped hundreds of Russian-made AK-47s — an assault rifle prized by both consumers and despots — as buyers wiped out gun dealers’ inventories around the country. The frenzy was brought on, in part, by a suspicion among some gun ownersthat the Russia-Ukraine conflict was a backdoor excuse to ban guns many Democrats don’t like. Some customers bought eight to 10 rifles for nearly $1,000 each or more, stockpiling them as investments.

This, the Post correctly notes, is typical:

The AK-47 buying frenzy presents yet another example of a paradoxical consequence of trying to limit gun sales: booming demand. During the debate over the measure commonly called the ­Brady Bill in the 1990s, gun purchases skyrocketed. When the Democrats took control of Congress in 2006, sales soared again. When President Obama tried to pass sweeping gun control laws after the 2012 Sandy Hook School shooting, some dealerseven sold out of ammunition.

The Obama administration has proven remarkably adept at selling firearms.