What does this all mean? I get the general concept of MOA and how you can adjust your scope to varying distances by clicking it, but what you are talking about is some sort of iron sight adjustment? Is this feature only on M16s and not commonly found on AR15s?
Just trying to understand. Thanks!
OK bear with me because I've just had to deal with a burgeoning civil war in the NC Liberty movement and I'm three sheets to the Crown Royal black right now, but I still think I can clarify this.
MOST AR-15's have A2 sights.
The knob on the
side controls windage, or the left to right strike of the round. The knob
below controls
elevation, or the up-down strike of the round. In the image I posted you see the number "10" which means 1000 yards - mind you this is an aftermarket sight so the number "10" does not exist on most AR-15 rear sights.
His is how it normally works:
OK, now look at the next image:
Do you see the "8/3" on the knob? One click counter clockwise (as looking from above) is 8/3-1
The 8/3 setting is 800 or 300 yards. 300 near bottom, or 800 near top. Assuming a 360 degree rotation of the knob.
Near the top, 8/3 is the 800 yard setting. near the bottom, 8/3 is the 300 yard setting.
Go one click lower than the 300 yard setting and you are at "8/3-1" which is the 200 yard setting.
Fo TWO clicks lower than the 300 yard setting and you are at "8/3-2" which is the 100 yard setting. In fact, 8/3-2.5 is generally "bottomed out."
The same sights are normally on the M-16 AND the AR-15
Thing is, if you get "MOA" you are already way, way beyond many hard core rifle marksmen in knowledge, because MOA is THE KEY.
If you 'get' MOA everything else follows from that.
This is what I am most grateful to Appleseed for is expounding MOA. We didn't get MOA in the Marines. We got the unsupported positions, we got the "point of aim - point of impact" that most riflemen done get, we got a lot of stuff in the Marines but we didn't get MOA. IMHO MOA is the KEY to understanding rapid zero and sight adjustments. Once you "get" MOA everything else falls in line.
The M-16 and AR-15's with A2 sights are juuuust about 1/2 MOA per click of WINDAGE (side knob) and elevation (bottom knob) should be EXACTLY 1/2 MOA.
I hope that answers the question. If not let me know. Like I said I am 3 sheets to the wind after having to put down a civil war, so I barely know what I am doing right now lmao!