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Posted: 4/2/2006 1:24:55 PM EDT
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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? thanks |
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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... |
| 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. |
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