MOA... i'm sorry what was that? What the heck is MOA (Minute of angle) and why do I need to know this? This is what was going on in my mind when I came across this specification. I soon learned what it was and it makes total sense. A bullet doesn't just fly exactly where you point the gun for ever right, there are elements like gravity, wind and elevation that we have to consider! Haha silly me.

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MOA, or Minute of Angle, is a unit of measurement used in gun optics to describe the size of the dot or reticle in the scope or the size of the group of shots fired from the firearm. One MOA is equal to 1/60th of a degree, or about 1 inch at 100 yards, 1.047 inches at 110 yards, 2 inches at 200 yards, etc.

In gun optics, MOA is often used to describe the adjustments made to the scope's reticle to account for bullet drop and windage. For example, if a scope has a reticle with 1 MOA markings, then moving the reticle one mark to the right or left will move the point of impact of the bullet approximately 1 inch at 100 yards. Some scopes have MOA adjustments that allow the user to fine-tune the point of impact by turning a knob or making other adjustments.

MOA is just one of several units of measurement that can be used in gun optics. Others include Mils (milliradians), which is similar to MOA but is based on metric units instead of imperial units. It is important for the user to understand the units of measurement used in their optics and how to make the necessary adjustments to ensure accurate shots.