Mechanical zero should be the same as the M16 you shouldered in the Reserves. Align the back sight to the notched (top of the aperture) 0 windage position...rotate the front sight post so that the base of the pin is more or less flush with the sight hood frame. You should now be at mechanical zero. If the rear sight isn't marked you will have to old school it...rotate all the way left or right then count the clicks needed to move aperture fully in the opposite direction...backing off half the resulting clicks is dead center.
"The whole of the Bill (of Rights) is a declaration of the right of the people at large or considered as individuals.... It establishes some rights of the individual as unalienable and which consequently, no majority has a right to deprive them of." (Albert Gallatin of the New York Historical Society, October 7, 1789)
"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government." - George Washington
Last edited by Jpyle; 08-26-2012 at 12:04 AM.