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Thread: Frankford Arsenal XM-177 - thoughts?

  1. #1
    Registered User
    Join Date
    Aug 2022

    Frankford Arsenal XM-177 - thoughts?

    There is a Frankford Arsenal XM-177 for sale locally. I have not given a lot of thought or research toward owning a M16 variant, so I know nothing about the various non-Colt options available.

    Can anyone fill me on on the Frankford builds? It looks like the receiver is Olympic Arms. Are the Frankford builds considered decent? The receiver is marked SGW - Oly , and the lower is stamped Frankford Arsenal with the logo and FAxxxx serial number.
    Last edited by Eskew5; 10-05-2022 at 01:33 PM.

  2. #2
    UZI Talk Life Member

    Join Date
    Mar 2006
    Southern New Hampshire
    Even if it is out of spec, you can have it blueprinted. The big thing is the money. If it is a good deal, you can flip it if you don't like it. There are so many calibers and configurations. Good luck with the decision.


  3. #3
    UZI Talk Supporter
    brenbuilds's Avatar
    Join Date
    Mar 2019
    AREA 51
    The lowers are forged, which is one of the more important things. Olympic Arms/SGW lowers are were commercially manufactured and known to be slightly out of spec. They're fitment is often very tight with various uppers, and the magazine well can be tight with polymer magazine such as P-Mags. That being said they are otherwise fine and if desired, they can be brought to proper specifications fairly easily. Frankford Arsenal executed the conversions, so sear pin hole will be done correctly. If the price is right, I would jump on it.

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