That's right, the Springfield Armor. The name was selected by a poll, and beat out Colonials, Founders, Spirit, and "write-in." Why Armor? According to the press release,
The name "Armor" pays tribute to the historic Springfield Armory, which has served as a symbol of strength and stability for Western Massachusetts and the United States as a whole since George Washington authorized its creation in 1777.
It's true that armor is a symbol of strength, but based on that logo it also may be a symbol of limited mobility. It also looks like the team's primary colors will be red, blue and black, though there may be some silver in there as well.