SIONICS Receiver Extension Kit w/ H-Buffer View larger

SIONICS Receiver Extension Kit

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All Hardware needed to mount a Collapsable Stock on an AR-15 Lower Receiver.  The SIONICS Kit includes: SIONICS 6-Position MIL-Spec Receiver Extension - Dry Film Lubricated, H-Buffer, Sprinco Action Spring - Blue, Castle Nut and Receiver End Plate

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$89.95

  • H2 Buffer (+10.00)
  • H Buffer
  • H3 (+20.00)
  • Yes (+45.00)
  • No
  • Yes (+$15)
  • No

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All hardware needed to mount a Collapsable Stock on an AR-15 Lower Receiver

The SIONICS kit includes:

  • SIONICS 6-Position Mil-Spec Receiver Extension - Dry Film Lubricated
  • H-Buffer (H2 and H3 also available)
  • Sprinco Action Spring - Blue
  • Castle Nut
  • Receiver End Plate

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SIONICS Receiver Extension Kit

SIONICS Receiver Extension Kit

All Hardware needed to mount a Collapsable Stock on an AR-15 Lower Receiver.  The SIONICS Kit includes: SIONICS 6-Position MIL-Spec Receiver Extension - Dry Film Lubricated, H-Buffer, Sprinco Action Spring - Blue, Castle Nut and Receiver End Plate