Because EVERY GUN I OWN IS CLEAN!! This might be the one and only time in my life when they are all in tip top shape. I even cleaned my glocks for good measure. It wouldn't have taken 6 hours if I would clean a gun after I shoot it, but 9 times out of 10 I just throw it back into the safe. I hate dealing with procrastination after the fact! By far the worst were my EDC glock 22 and my DPMS AR 15 whose permanant home is between the front seat and council of my truck.