Ep-8: Billet, Forged, Completed, or Stripped Lower Receivers? Your AR-15's Most Customizable Part.

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Do you go with an Aero Precision stripped lower receiver and customize every last part? Something ready out of the box like KE Arms polymer lower receiver? Or just upgrade a few parts on your M&P15 or AR556? Either way, you have options and we have answers for what parts you can swap out and what makes one lower receiver different from the next.