Aquarter century is a long time for a rock ’n’ roll band to last. The Figgs, long associated with Boston without ever actually being from here, not only reached that milestone this year, they’ve done it with a core lineup — essentially, Guy Lyons, Mike Gent, Pete Donnelly, and Pete Hayes — that is striking in its stability. (Lyons left the band in 1997; he’ll be joining the Figgs for their anniversary celebration this weekend.)

It’s an accomplishment that Gent himself can only acknowledge by saying, “It’s wild” and “It seems to have gone by pretty fast.” But in the course of a phone conversation from his Boston home, he makes observations that suggest that the band may even have lasted in spite of itself.