several American gun companies also made bicycles or bike parts
Iver Johnson and Fulton Arms (LC Smith) among them
in the 1890's (LeFever's letterhead said maker of hammerless shotguns and high grade bicycle chains

Annie Londonderry was the first woman to ride a bike around the world. As she set off from Boston the newspaper reported, She carried with her only a change of clothes. A pearl-handled pistol and a lot of chutzpa.

and don't think its an unusual accessory still today