Ar-15 A2 front sight discoloration

Discussion in 'AR-15 Discussion' started by thatguy510, Dec 8, 2012.

  1. thatguy510

    thatguy510 New Member

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    I just picked up a new ar and noticed some discoloration around the pin on the front sight. I have another rifle of the same brand and it doesn't have it which doesn't really mean anything so I thought I'd ask all you guys. Anyone ever see this before? It's present on both sides and they are near perfectly circular. I am sure it has something to do with manufacturing and is normal but thought I'd ask. Also, I tried a qtip with some solvent just to make sure it isn't light surface rust and it isn't. Thanks guys!
     

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  2. jcooley6960

    jcooley6960 New Member

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    I've had the same thing from a couple rifles I guess they scuffed the blueing up when they installed the gas roll pin, probly just Put some more blueing over it
     

  3. SSGN_Doc

    SSGN_Doc Well-Known Member

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    Probably a bit of heat discoloring or gas leaking. Not a huge deal.
     
  4. Quentin

    Quentin New Member

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    I was also thinking gas leakage which is not uncommon in a new rifle. If so, the leak tends to be very small and doesn't affect function. And it should seal anyway after a few hundred rounds.
     
  5. thatguy510

    thatguy510 New Member

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    Thanks guys. I appreciate the input.