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Lower Receiver Parts Checklist

In order to help you assemble all the parts necessary to complete your stripped lower receiver or 80% lower receiver, here is a complete AR-15 lower receiver parts checklist.

Lower Receiver

The AR-15 lower receiver can be built on either a stripped lower receiver or an 80% lower receiver.

  • Stripped Lower Receiver
  • 80% Lower Receiver

Lower Parts Kit

Lower parts kits are available with or without a buttstock assembly.

Individual LPK Parts

Lower parts kits (LPK) are available as complete packages or sold as stand alone parts.

  • Magazine Catch Button
  • Magazine Catch
  • Magazine Catch Spring
  • Trigger Pins
  • Disconnector
  • Spring Kit
  • Takedown Pins
  • Trigger
  • Hammer
  • Bolt Catch Plunger
  • Bolt Catch
  • Selector


The buttstock assembly can be purchased complete or as individual components.

  • Buttstock Assembly
  • Buttstock
  • Buffer Tube

80% Lower Jig

To efficiently complete your 80% lower consider an 80% lower jig or an 80% lower jig pack complete with multiple 80% lower receivers.

AR-15 Lower Receivers is proud to offer quality AR-15 components for your AR-15 build. Start your build today and have the confidence that your firearm is backed by our 100% satisfaction guarantee. If you have any further questions, please feel free to contact us.

Be safe, have fun and support the Second Amendment.


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