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1/25/2018 7:38:29 AM
Posted: 4/2/2006 12:24:55 PM EST
I tried to zero at 50 yards and was so far to the right i had to adjust the windage all the way to the left to compensate.....what is in spec for a windage adjustment...I know this is not

also how is this problem corrected by bushmaster when i send the upper back?

is better to just get a refund?

Link Posted: 4/2/2006 1:33:23 PM EST
[Last Edit: 4/2/2006 1:34:25 PM EST by theshootersden]
You have one of the infamous Bushmaster uppers with a canted FSB... Unless you can exchange it locally, save yourself the trouble of returning it to the factory and give the FSB a couple good whacks with a mallet to correct the offset...

ETA: If your not the mechanical type, then just send it back for replacement...
Link Posted: 4/2/2006 2:58:13 PM EST
Par for the course with Bushy...
Link Posted: 4/2/2006 3:32:11 PM EST
[Last Edit: 4/2/2006 3:33:38 PM EST by eddiein1984]
I always wondered about this: if you reposition the FSB, isn't it possible that it will no longer line up with the gas port, causing the gun to short stroke? BTW, I had a Bushmaster upper with the opposite problem. It fired to point of aim at mechanical zero, but short stroked.
Link Posted: 4/2/2006 4:03:08 PM EST
the hole in the fsb is much larger than the gas port itself so it has a lot of room to move around
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