User Panel
User Panel
User Panel
|
Posted: 1/31/2010 9:25:44 AM EDT
[#1]
Quoted:
I see uppers described as A2, A3 and A4. What does that mean? They correspond to the upper receiver. A2 is an upper receiver with the fixed carry handle (i.e., you can't take off the carry handle––it's machined with the upper receiver) and the rear sight is adjustable for elevation and windage (A1 uppers are only adjustable for windage). A3 is a flat-top upper receiver with a removable carry handle. A4 is a flat-top upper receiver. Is an upper the complete barrel assembly, i.e. the upper half of a gun? If you buy say a Bushmaster upper can you put that on a Armalite lower? Yes. If I'm wrong, I'm sure someone will come along to correct me. Edit: grammar. |
|
|
|
Posted: 1/31/2010 9:25:59 AM EDT
[#2]
A2 is fixed carry handle with upgraded A2 sights
A3 is a flattop A4 is used to describe a 20" bbl with flattop upper Upper can be used to describe a barreled upper, or just the receiver portion |
|
|
|
Posted: 1/31/2010 4:33:38 PM EDT
[#3]
Thank you.
|
|
|
|
Posted: 1/31/2010 6:14:10 PM EDT
[#4]
Most are:
A2 - Fixed carry handle A3 - Flat Top A4 - Flat top with removable carry handle |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
