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Important: Firearms must ship to a licensed FFL dealer. We will contact you after purchase.
Rifle length buffer tube AR-15/M4/ M16/LR-308 pattern. Made from black hard coat anodized aluminum, the CMMG A1 receiver extension (buffer tube) is designed to accept fixed rifle length stocks and is compatible with Mk4 (AR-15) and Mk3 (LR-308) lower receivers.
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