The NLOS-C was to provide responsive fire in support of the FCS combined arms battalions, and their subordinate units.

It would have operated with line-of-sight, beyond-line-of-sight, non-line-of-sight (NLOS), external, and non-Army (joint warfare) capabilities.

This was accomplished by including the autoloader from the Crusader project which achieved the goals of a much improved fire rate with a reduction in required crew.

[1] The proposed system was envisioned as part of a fast mobile force networked via improved communications and data capabilities to allow rapid response with enhanced accuracy with the view to reducing friendly fire incidents along with lessened collateral damage, while providing superior protective artillery fire to units requiring gunfire support.

[2] Improvements in the refueling arrangements and automation of ammunition reloading reduced the amount of time spent on resupply and during which the gun would be unavailable for combat support.

[4] BAE Systems developed a concept technology demonstrator test bed with an M777 howitzer 155 mm gun tube.