A Detroit grandmother running for Congress is literally up in arms.

Janice Winfrey, the city’s longtime city clerk, has launched a primary challenge to incumbent “Squad” member Rep. Rashida Tlaib and says the district is now so unsafe she needs to carry a gun.

“I can’t go to the park by myself anymore and that is concerning to me,” the 62-year-old Democrat told The Post, explaining why she purchased her 22-caliber pistol.

“I would like not to have to carry the gun. I don’t want the gun in my house. I have a 2-year old granddaughter. It’s locked in a safe in a closet on the top shelf. I don’t like it. We don’t believe in that, but I have to feel safe,” said Winfrey, who has served as clerk since 2006.