SD AR 15 Assembled Upper Receiver 45

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Mil-Spec flat top upper receiver with Stern Defense laser engraved dust cover and forward assist. Machined from 7075-t6 aluminum and hard-coat anodized. Mil-spec dry film lube in the bore.  This uppers ejection port has been enlarged to work with larger shell casings,  45ACP and etc.


Technical Information:

⦁    7075-t6 aluminum

⦁    Hard-coat anodized.

⦁    Sturdy construction.

⦁    Made in U.S.A.





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  • 4
    .45 acp upper

    Posted by Brian Collins on Apr 8th 2019

    arrived in a timely manner. Appears to be quality material. It is a project, so after I get the barrel, bolt and hand guard from you, I am sure it will be 5 stars.