Army Sgt. Carl Hawthorne of the 273rd Military Police Company fires tracer rounds from an M249 machine gun during crew-served weapon training at Fort A.P. Hill, Va., on May 5, 2012.

Douglas Haig, an Arizona man who says he sold tracer ammunition to the gunman in October’s Las Vegas massacre, was arrested Friday on a charge of conspiring to manufacture and sell another type ...

Investigators found tracer rounds in his hotel room, along with a document naming the Mesa, Arizona, man who sold him the ammo. Paddock met the man at a Phoenix gun show, and bought the bullets ...

Tracer rounds, special bullets that light up like fireworks, have helped soldiers aim machine gun fire for almost a century. And for those 100 years, enemy soldiers have watched those flashing ...

PICATINNY ARSENAL, N.J. (July 28, 2014) -- Engineers at Picatinny Arsenal are researching a way to develop a new type of tracer round that not only would perform its function during the day as ...

The one-way luminescent tracer, or OWL, round is still in development, with the Army focusing on 5.56mm and 7.62mm, its most widely used small arms rounds. But, Power said, ...

The tracer rounds are also banned under stage two fire restrictions, so if you are caught using it you can face criminal prosecution. Just like the two who started the Lake Christine Fire.