Officially the Arms Material Multi-purpose Rifle System model 4. Designed for infiltration missions, the AM MRS-4 is a variant of the FN FNC. Its suppressor is light, adding minimal weight but sacrificing durability. The shorter barrel allows for ease-of-handling, but decreases the weapon's effective range. Post-Peace Walker incident, it was used alongside the M16A1 as one of the standard assault rifles of the Militaires Sans Frontières. Due to its relatively low rate of fire and limited (usable) suppressor lifespan, this rifle was used more often during covert operations where minimal gunfire was expected.