From publisher blurb:
Each Gadget Guide in the series takes a look at a particular type of devices in Mutants & Masterminds game terms, putting together the effects and modifiers from the Hero's Handbook to present different a wide variety of gadgets of that type. It also looks at specific concepts related to creating and using those devices in play. The Guide is a catalog of ready to use toys for your M&M game!
Guns
Some heroes look on them with disdain, others use them as essential equalizers. All heroes have to deal with them sooner or later. Guns are the most common type of modern weapon, used by criminals and the authorities opposed to them, by national armies and the agents of criminal masterminds.