Mil-Spec AR-15 Receiver Extension Lock Nut (Castle Nut)

$6.95
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Mil-Spec AR-15 Receiver Extension Lock Nut (Castle Nut)

  • SKU: MS01260

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Mil-Spec AR-15 Receiver Extension Lock Nut (Castle Nut)

Description

Standard Mil-Spec Castle nut, used to lock receiver extensions in place on lower receivers. Mil-spec. receiver extension lock nut (castle nut) for use on AR15 carbines with an adjustable stock.