Abstract: The invention is mounted on the forward end of a firearms magazine using an adapter that replaces the magazine cap. The invention contains a small bulb (LED, incandescent, or any other available source of light, visible or invisible), at least one battery, and an internal or external actuating switch. Depending on the size requirements of the user, the invention can also increase the amount of ammunition the firearm is capable of carrying by extending the length of the magazine tube. The light emitted from the invention will be aligned with the muzzle of the weapon and illuminate the area that the weapon is pointed at.