AR-15 Decision: A2 or Flattop/A3?

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Matt-man said:
Also... isn't M16A4 the correct nomenclature for a flat-topped M16?
No. A3 and A4 are not actual military terms. The civilian manufacturers use them to designate flat top offerings. Most use A3, but Armalite and possibly others use A4.
 
For your first upper I would get a CAR 16" flattop with detachable front sight -second upper a 20" varmit flat top stainless and the third an A2 20". Get a lower with a NM trigger - as in Rock River or Bushmaster - and you will be covered.
 
TechBrute said:
No. A3 and A4 are not actual military terms. The civilian manufacturers use them to designate flat top offerings. Most use A3, but Armalite and possibly others use A4.

The M16A3 and M16A4 do in fact exist as U.S. military weapons. The A4 is the one with the flat top and is the current issue for frontline Army and Marine units.

Sources: Wikipedia, GlobalSecurity.org
 
Dear God, who dug up this hoary old thread I started? Yeesh.

For the record I found a very good deal in the equipment exchange over at arfcom for a 20" A2 upper. I like it.
 
TechBrute said:
No. A3 and A4 are not actual military terms. The civilian manufacturers use them to designate flat top offerings. Most use A3, but Armalite and possibly others use A4.
I was issued the M16A3 aboard CVN-74 U.S.S. John C.Stennis, 2001-2002. When we were on watch we had our choice between the M14 or the A3, I chose the A3, cause I can't hit the broadside of a barn with the M14. I believe only the Navy has A3s, I only got that on the boat. Every other time I had a rifle it was an A2 or an M249.


The M16A3 is nearly indistinguishable from the A2, but I did notice:
1. All the ones I got were made by FN.

2. The stock felt "fuzzy" like it was made from a different material than the M16A2.
 
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