CMMG

MK4 Receiver Extension Buffer Tube Lock Nut

Item No. 81583501742
$9.99

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Est. Delivery Wed. 5/8 - Sat. 5/11

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Product Details

MK4 Receiver Extension Buffer Tube Lock Nut

81583501742

The CMMG Mk4 Receiver Extension Buffer Tube Lock Nut is a replacement part for MSR receiver extensions. This AR castle nut is built to meet military specifications to provide long-lasting and reliable quality. This buffer tube lock nut is great for repairing or building a lower receiver extension. Repair your tactical rifle with the CMMG Mk4 Receiver Extension Buffer Tube Lock Nut.

Features

  • Built to meet mil-spec
  • Can be used to repair AR15 or personal builds
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