Abstract: An assembly adapted for attachment to a penlight body, comprising housing means formed with a rear end and a front end in longitudinally spaced relationship to each other and an axially extending aperture extending inwardly from the rear end. The aperture is adapted to receive the bulbed end of the penlight body in seated telescopic relation thereto, and first magnetic means extending circumferentially on the housing means in spaced relationship to said front end and terminating in a free end thereof is used. Shoulder means is disposed intermediate the magnetic means and the front end with viewing means adapted to be mounted on the shoulder means. Coupling means having an inner end and a spaced apart outer end with an axially directed bore extending inwardly of the inner end is provided for securing the viewing means in removable fixed relationship to the first magnetic means by means of a magnetic force formed between the first magnetic means the coupling means.