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Posted: 4/8/2006 7:58:43 PM EDT
what's the difference between a1, a2, and a3 uppers? (yes it's a newbee question)
Link Posted: 4/8/2006 8:02:10 PM EDT
[Last Edit: 4/8/2006 8:03:30 PM EDT by sling_blade]
looky here.



ETA: Welcome to the site, newbie.
Link Posted: 4/8/2006 8:02:48 PM EDT
Courtesy of Bushmaster's webpage:

A1 upper:


A2 upper:


A3 upper:
Link Posted: 4/8/2006 8:03:48 PM EDT

Originally Posted By Treelo:
Courtesy of Bushmaster's webpage:

A1 upper:
i2.tinypic.com/ta4ent.jpg

A2 upper:
i2.tinypic.com/ta4f1h.jpg

A3 upper:
i2.tinypic.com/ta4f8j.jpg



C7
A2
A3
Link Posted: 4/8/2006 8:07:38 PM EDT
Thanks guys.
Link Posted: 4/8/2006 8:16:58 PM EDT
Thanks guys for answering the question without blasting him out of the water. That shows that there is still some class here.
Link Posted: 4/8/2006 8:18:31 PM EDT

Originally Posted By SucalT:
Thanks guys for answering the question without blasting him out of the water. That shows that there is still some class here.



Well, this isn't the General Discussion forum after all.
Link Posted: 4/8/2006 8:29:29 PM EDT
We were all new here once.
Link Posted: 4/8/2006 8:35:56 PM EDT
I'm a little confused. I have a copy of the 7th edition of MILITARY SMALL ARMS of the 20th century and it states that the brass deflector wasn't added until the A2 model. The pic of the A1 they used as a reference doesn't have one. But the pic of the A2 they used does. The pic that is on this thread shows the A1 with a brass deflector. Which is it?
Link Posted: 4/8/2006 8:40:46 PM EDT

Originally Posted By Prophet118:
I'm a little confused. I have a copy of the 7th edition of MILITARY SMALL ARMS of the 20th century and it states that the brass deflector wasn't added until the A2 model. The pic of the A1 they used as a reference doesn't have one. But the pic of the A2 they used does. The pic that is on this thread shows the A1 with a brass deflector. Which is it?



Canadian C7 style upper. Similar to an A1 but with the addition of the brass deflector.
Link Posted: 4/8/2006 9:52:32 PM EDT
As others have said, Canada uses a version of the A1 upper which has a brass deflector. They call it the C7. Most of the new "A1" uppers you see around are actually C7s.

Some of the civilian AR makers (e.g. Bushmaster) call flat-tops "A3." The M16A3 is actually not a flat-top. It has a regular A2 receiver (but a different firing group). The flat-top M16 is actually designatged as the M16A4. So some AR makers (e.g. RRA) call the flat-tops "A4."
Link Posted: 4/8/2006 9:54:55 PM EDT
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