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9/19/2017 7:27:10 PM
Posted: 12/12/2003 7:46:19 AM EDT
Can you guys tellme the diffrence between an A-2 and an A-4?

I had somone ask me I and I wanted to know.
Link Posted: 12/12/2003 7:49:14 AM EDT
The A-2 has a carry handle with sight. The A-4 has a flat top upper.
Link Posted: 12/12/2003 9:26:10 AM EDT
Easier to read this (with photos): [url]http://groups.msn.com/TheMarylandAR15ShootersSite/whatisana1a2a3ora4.msnw[/url]
Link Posted: 12/12/2003 10:24:40 AM EDT
Huh, I thought the A-3 was the flattop, but it looks like they both are. Why the diffrent designation?
Link Posted: 12/12/2003 10:58:16 AM EDT
[Last Edit: 12/12/2003 10:58:37 AM EDT by Wipeout]
Originally Posted By notso: Huh, I thought the A-3 was the flattop, but it looks like they both are. Why the diffrent designation?
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The A3 is safe-semi-auto. The A4 is safe-semi-burst
Link Posted: 12/12/2003 7:25:09 PM EDT
Oh, so it is a designation diffrence in RIFLES not uppers
Link Posted: 12/13/2003 9:48:38 AM EDT
It is a designation for a complete rifle variant, not parts thereof. The A3 was indentical to the A2 except for the safe-semi-auto. The A4 is the only M16 variant that has the flat top. (also changed to safe-semi-burst.) A common mistake is when vendors refer to their flat top AR15 receiver as an "A3", this is misleading. If they followed to US Gov't naming convention, they would refer to flat top receivers as "A4".
Link Posted: 12/13/2003 10:32:13 AM EDT
Originally Posted By notso: Oh, so it is a designation diffrence in RIFLES not uppers
View Quote
Different Civilian manufacturers call their "flattop" uppers either A3 or A4. For example, Bushmaster & Colt call their flattops A3's while Armalite and Rock River Arms call them A4's. A1,2,3,&4, mean different things when talking about thecivialian AR-15's and Military M-16's. I hope that helps clear it up.
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