Harris Publication, a 39-year-old publisher of mostly niche magazines, shocked its staffers on Thursday by suddenly announcing it was closing up shop.

In all, 85 jobs will be lost. Staffers have until 6 p.m. Friday to clear out their desks.

Harris publishes XXL, a hip-hop title, Naturally, Danny Seo, auto buff titles Rides and MoPar Action, as well as Celebrity Hairstyles, Fresh Quilts and an assortment of gun titles including Combat Handguns, Tactical Weapons, Survivor’s Edge, and Guns & Weapons.

“It is with great sadness that we announce the closing of Harris Publications,” said Stanley Harris, chairman of the family-run business that specialized in newsstand-driven titles.

Harris blamed the decline on the rise of digital media as well as the upheaval in the newsstand marketplace.

Said Danny Seo: “There were signs … they were slowly folding titles every week, including Rides, Small Business Magazine, Juicy, the beauty titles.”

Seo said his own magazine was turning a profit, “but one magazine can’t lift one company, and I’m saddened to hear about their closure.”