Firearms are provided that can include a firearm frame having a grip attached thereto; a power source recessed within the grip; and a power coupling assembly positioned along the frame, the assembly being in electronic communication with the power source. Firearm frames are provided that can include a grip having a power source therein; and at least one power line extending from the power source to an exterior portion of the frame. Methods of powering a firearm accessory are provided that can include providing a power source within a grip of the firearm; and powering the firearm accessory with the power source.