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Posted: 8/13/2003 6:57:56 AM EDT
Sorry to have to ask this but I have been out of the loop for a while. I have looked around but can't find a simple answer to the differences between an A4 and A3 upper recievers only. Differences? pros? cons? etc...

I am replacing my A2 and would like to know. Thanks.

Link Posted: 8/13/2003 7:30:42 AM EDT
[url=http://groups.msn.com/TheMarylandAR15ShootersSite/whatisana1a2a3ora4.msnw][b]What is an A1, A2, A3, A4?[/b][/url]
Link Posted: 8/14/2003 6:09:03 AM EDT
As Maryland states, M16A1- old still sights, fixed carrying handle, no brass deflecture, M16A2- new adjustable sights gradulated to 800m, fixed carrying handle, brass deflecture. M16A3- same as M16A2 (has full auto capable instead of burst) M16A4- adjustable sights to 600m, detachable carrying handle, and brass deflecture
Link Posted: 8/14/2003 6:27:02 AM EDT
thanks for the help...I thought maybe one had the feed ramps I've been hearing about while the other did not. Bill
Link Posted: 8/15/2003 8:25:00 PM EDT
The feed ramps are part of the M4, not the M16. But I've heard rumors of the feed ramps showing up on non-M4 barrels and uppers.
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