(CNN/Money) Here’s a surprising effect of the latest U.S. sanctions against Russia: a run on AK-47s.

Among the companies sanctioned this week was Kalashnikov Concern, the maker of the automatic weapon.

“We sell some of the Kalashnikov Concern stuff and that has been selling fast,” said Robert Keller, manager of K-Var Corp., a Las Vegas-based online gun distributor.

Keller said his company has been sold out of the guns since the sanctions went into effect. On K-Var’s web site, AK-47s are listed as “out of stock.”

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