Oklahoma Army National Guard (OKARNG) Sergeant (SGT) Steven Schoeppach (right), shows SPECIALIST (SPC) Sean Cook how to attach a head band mount to a AN/PVS-4 Individual Weapon Night Sight scope during checkpoint operations in New Orleans, Louisiana (LA). SGT Schoeppach and SPC Cook, are both Artillerymen with Battery B, 1ST Battalion, 171st Field Artillery. OKARNG Soldiers are armed with a Colt 5.56 mm M16A2 Assault Rifles. (A3570)