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BCM® KMR Barrel Nut Wrench (and M4 stock)
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BCM® KMR Barrel Nut Wrench (and M4 stock) quantity
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This barrel nut wrench is for your KMR barrel nut. This is for hobbyist install.
This wrench also works for your M4 Lock Nut (Castle type).
Like all BCM® products, made in USA (410 Stainless Steel).
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