I would much rather have the M1A1 also. Spent a summer in Kuwait a few years back attached to a tank company. They let me fire a table during gunnery. Much more stopping power than 5.56mm.
Where did you "acquire" a P90 in Iraq?
"If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom, go from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, and may posterity forget that you were our countrymen!” - Samuel Adams