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5/3/2010 8:50:54 PM EDT
Any advantage to (or problem with) mounting an A2 rear sight aperture on an A1 upper?  

Just haven't ever seen it done before, wondered if there was a reason for that.
5/4/2010 3:13:10 AM EDT
[#1]
Before red-dots and the tac-cool carbines came into play, lots of folks did just this.
5/4/2010 7:28:03 AM EDT
[#2]
Thanks.

I'm considering a lightweight midlength with an A1 upper, and thought the A2 aperture might be a nice addition to the plan.
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