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1 definition by lurch/brittney/creepyguy

 
1.
MOA
An acronym for Minuet of Angle. It is a angular measurement of exactly 1/60th of 1 degree, commonly used in astronomy and ballistics, and any other field that requires such minute measurements.
M4's are guaranteed to have a sub-MOA grouping when properly shot and zeroed.
by lurch/brittney/creepyguy August 18, 2011
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