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Old January 9th, 2010, 01:24   #13
Slono
Slow mo.
 
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Join Date: Aug 2009
Location: GTA
Quote:
Originally Posted by pusangani View Post
loosen the screw a bit n see if it moves back and forth smoothly, then tighten it up to the point that it still works

*edit

Also make sure that ur rear sight is seated correctly and that the top of the bbu is mating correctly with it.
To my understanding if the rear sight was not mating correctly with the top of the BBU that would mean the BBU would be pushed down and it wouldn't line up with the rails. There is a small gap between my rear sight and the slide, but the BBU is sitting flush with the rails so the sight probably isn't the issue.
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