Helga hunting in the nearby Czech Rep. video
The anti-immigrant AfD has won growing popular support in Germany due in part to Europe's migrant crisis, which has seen more than 1 million refugees arrive over the past year, and it now has seats in eight of Germany's 16 state assemblies.
After two Islamist attacks and a shooting rampage by a mentally unstable teenager last month, Germans are on edge and the AfD is expected to make a strong showing in votes next month in Berlin and Mecklenburg-Vorpommern.
"Many people are increasingly feeling unsafe. Every law-abiding citizen should be in a position to defend themselves, their family and their friends," Frauke Petry told the Funke Media Group in an interview published on Saturday.
"We all know how long it takes until the police can get to the scene, especially in sparsely populated places," she said.
Known for her fiery speeches to AfD supporters, Petry sparked an uproar earlier this year when she called for German police to be allowed to use firearms against illegal migrants.