Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Durkin Tactical Franklin Armory
User Panel

Posted: 12/31/2002 4:50:57 PM EDT
I am new to AR technology and I would like to know the differences in AR uppers relative to A1, A2 and A3.
Link Posted: 12/31/2002 5:48:30 PM EDT
Welcome aboard Stogieman.

The A1, A2 and A3 designations usually are in reference to the type of rear sights used.

An A1 upper has the windage adjustable only rear sights. This is what was used on the original AR15's and M16's, though the M16A1 also had the forward assist.

A2 has the elevation and windage adjustable sights.

A3's are the flat-top receivers for easier mounting of scopes. Removable carry handles are available with the A2-type of sight.
Close Join Our Mail List to Stay Up To Date! 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.

By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
Top Top