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1/16/2016 4:29:27 PM EDT
I have a 16" Colt LW barrel which has an FSB which cants slightly to port.  To zero at 50 yards put the rear sight aperture in the stops.

Any cheap fixes available?  Other solutions/
1/23/2016 11:09:05 AM EDT
[#1]
Call Colt customer service and get them to fix it under warranty.

Specialized Armament can fix it too. Don't know how much SA would charge.
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