ATK Begins Full Rate Production of the US Army’s New Enhanced Performance Round

ATK Begins Full Rate Production of the U.S. Army’s New Enhanced Performance Ammunition Round
Current Orders Total Nearly 300 Million Rounds
EPR is Significant Breakthrough in 5.56mm Ammunition Performance

M855A1 Enhanced Performance Round
M855A1 Enhanced Performance Round

MINNEAPOLIS, MN –-( ATK (NYSE: ATK) has received orders from the U.S. Army’s Program Manager for Maneuver Ammunition Systems (PM-MAS) for nearly 300 million rounds of the new M855A1 Enhanced Performance Round (EPR).

The EPR is an enhanced version of the M855 5.56mm cartridge, used by U.S. troops since the early 1980s.

ATK is producing the new cartridge at the Lake City Army Ammunition Plant in Independence, Mo. ATK produced the initial 20 million rounds of M855A1, which were delivered to the troops in Afghanistan earlier this year.

“This is a significant breakthrough in ammunition performance for America’s warfighters,” said Mark Hissong, ATK Small Caliber Systems Vice President and General Manager.

“To ensure optimal performance, ATK and the Army put the EPR through the most rigorous and thorough test regime of any round we have ever produced. The result is the successful fielding of a high-performance round that is in theater today, and capable of providing superior firepower in any combat condition.”

ATK partnered with the Army to develop a flexible manufacturing plan to rapidly transition the EPR program into high-volume production. The new round offers a higher velocity for more energy on target, improved hard-target capability, and greater accuracy and consistency for effectiveness at long range.

The round’s technological advancements, coupled with ATK’s innovative approach to ammunition engineering, have delivered what the Army calls “the most significant advancement in general purpose small caliber ammunition in decades.”

ATK is a premier aerospace and defense company with operations in 24 states, Puerto Rico and internationally, and revenues of approximately $4.8 billion. News and information can be found on the Internet at