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12/16/2014 1:47:44 AM EDT
Kind of a noob question and I am sure its not the first time this has been asked. I have just got through assembling my first AR just basically put together both complete upper and lower. question is a slight alignment thing. first off everything does fit together pins go in fine and such. But I did notice the rear side of the upper receiver is not quite meshing up with the lower. Best way to explain is if you where to look from the top of the gun down the upper would be hanging slightly right of the lower. Its not terrible but if I were to put in the front pin I would have to actually push the upper over a little bit to fit down in there the right way. Probably not a big deal just curious if everything will be cool. I know most parts will not match up just perfect, and I figure as long as they will go together and pins will push in everything should work fine?
thanks
12/16/2014 1:57:51 AM EDT
[#1]
Hand cycle the action and dryfire. You may feel the new parts grinding a bit, but if there isn't any binding or stoppages, it's probably fine.
12/17/2014 12:51:45 PM EDT
[#2]
One or the other may have been machined off center.
If so the BCG may not line up with the receiver extension the way it should.
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