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Thread: Are LMT bolts and Geissele rails compatible with Aero Precision uppers?

  1. #1
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    Are LMT bolts and Geissele rails compatible with Aero Precision uppers?

    Anyone know or actually built one with these parts? These would be on a Gen 2 upper.
    Last edited by Celt; 09-04-17 at 21:16.
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  2. #2
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    What upper in question m4e1? Or gen 2


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  3. #3
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    Quote Originally Posted by BPA164 View Post
    What upper in question m4e1? Or gen 2


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    GEN 2. Adding that info to my initial post.
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  4. #4
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    Those parts should be fine. Not sure on the bolt but the rail would be fine.


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  5. #5
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    Quote Originally Posted by Celt View Post
    Anyone know or actually built one with these parts? These would be on a Gen 2 upper.
    The Aero Precision Gen 2 is an M4 mil spec upper. Any bolt carrier group that is mil spec and meant for the AR-15 platform will work. I have about 7 Aero uppers on different builds and those all have LMT BCG's. Make sure however your order the correct BCG, for example the L7D3 (standard phosphate FA BCG). There is a SA(semi-automatic) version, but I recommend the full auto, due to the extra weight it has.

    The same logic applies to hand guards. Any hand guard that is designed to work with an M4 mil spec upper will work.


    Are you familiar with mil spec parts and what that means? I don't mean that in a rude way, it your question makes me wonder.


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  6. #6
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    Quote Originally Posted by Celt View Post
    Anyone know or actually built one with these parts? These would be on a Gen 2 upper.
    Are you talking about M4/M16 sized parts or the .308 platform sized parts?

    If M4-sized parts, then I agree with post #5.

  7. #7
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    but, WHY? LMT bolts are, probably the one of the best quality bolts on the market, and same with Geissele rails. How can you put LMT, Geissele and Aero in the same sentence, let alone the same gun?

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