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Method of making a two-piece primer insert

  • US 9,869,536 B2
  • Filed: 03/09/2016
  • Issued: 01/16/2018
  • Est. Priority Date: 03/09/2016
  • Status: Active Grant
First Claim
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1. A method of making a two piece primer insert for ammunition comprising the steps of:

  • providing an upper primer insert portion comprising;

    an upper primer bottom surface opposite an upper primer top surface,a flash hole aperture through the upper primer bottom surface,a flash hole aperture groove positioned in the upper primer top surface around the flash hole aperture configured to receive a polymer overmolding through the flash hole aperture, anda substantially cylindrical coupling element extending away from the upper primer bottom surface,providing a lower primer insert portion comprising;

    a lower primer bottom surface opposite a lower primer top surface,a primer recess in the lower primer top surface that extends toward the lower primer bottom surface and adapted to fit a primer, anda lower primer aperture through the lower primer bottom surface, aligning the upper primer top surface and the lower primer bottom surface; and

    connecting the upper primer top surface and the lower primer bottom surface to form a two piece primer insert.

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