To survive a year in Iraq, one must maintain a clean and well-operating weapon, and remain in a constant state of readiness. Daily cleaning of the weapon is important, removing components like the bolt assembly to clean guide rails. Excess oil must be wiped to avoid sand buildup. Roadside bombs pose a constant threat, and vigilance is needed to watch for ignition switches like pressure plates, thermal triggers, and remote detonation. With a clean weapon and alertness, one has a better chance of returning home safely.