ATK begins full rate production of the US Army’s new EPR
ATK has received orders from the US 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 US 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.”
Source: ATK
More from Land Warfare
-
Patria TRACKX - The ultimate tracked all-terrain armoured vehicle
Patria TRACKX, the ultimate tracked all-terrain armoured vehicle, is designed to conquer the most challenging environments with ease.
-
NATO’s Crystal Arrow factors in Ukrainian UGV lessons as European interest grows
One goal of NATO’s Exercise Crystal Arrow was to identify the potential uses of uncrewed ground vehicles – as seen on the Ukrainian battlefield – and put platforms into the hands of users.
-
SOF Week 2026: Galvion unveils Cortex Evo integrated combat helmet
Galvion has introduced its Cortex Evo integrated head system, combining ballistic protection, power, data and processing capabilities within a single combat helmet architecture.
-
Why cost-effective flexible networks are the key to C-UAS success
The widespread use of drones and loitering munitions in current conflicts has tilted the balance in favour of the attacking force, both operationally and economically. EOS’s Dr Andreas Schwer tackles the question of what kind of C-UAS defences are needed to protect battlefield forces, and even entire countries.
-
The C-UAS challenge: Finding the threat before it finds you
How Teledyne FLIR Defense C-UAS solutions – and sensors optimized for third-party systems integrators – deliver early drone detection and decision advantage for UAS threat response
-
GDLS is “on track and on schedule” to deliver the first XM30 prototypes in July
In an exclusive interview with Shephard, General Dynamics Land Systems’ director of US strategy and growth disclosed details of the company’s XM30 Wolf design.