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CMMG M4 Receiver Extension Nut

  • Item Number: 55CA9CB
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  • Condition: New
CMMG M4 Receiver Extension Nut
Temporarily Out of Stock
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Product Description

CMMG M4/AR castle nut designed to secure the receiver extension (buffer tube) to the lower receiver. Matte black finish. 

Product Features

  • M4/AR castle nut
  • Secures receiver extension
  • Matte black finish

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