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    10002001 Armalite AR10 A4B Upper Receiver Assembly w/ Forward Assist

    Manufacturer: Armalite
    SKU: ARM10002001
    Manufacturer part number: 10002001
    Availability: Out of Stock - backorder and will be shipped once in stock.
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    AR-10®A4 B-Series flat-top upper receiver made from forged 7075-T6 aluminum. Features a flat-top with MIL-STD 1913 rail. Thread size 1-7/16″x18″ UNEF-3A.

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