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Lower Parts Kit for AR-15

Lower Parts Kit for AR-15

  • 8697


All internal parts you need to complete a stripped lower AR-15/M16 receiver, except the buttstock assembly. This kit meets the M16 spec except our supplier has swapped out the M16 trigger group for semi-automatic trigger parts.

If you are building an AR lower, you may be interested in our handy Vice Block.

  • Mil-spec
  • Comes in an unmarked polybag from an ISO 9001:2008 military contractor
  • Total weight 220g

You get:

  • (1) Trigger
  • (1) Trigger spring
  • (1) Trigger pin
  • (1) Hammer
  • (1) Hammer spring
  • (1) Hammer pin
  • (1) Disconnector
  • (1) Disconnector spring
  • (1) Bolt catch
  • (1) Bolt catch plunger
  • (1) Bolt catch spring
  • (1) Bolt catch roll pin
  • (1) Fire selector
  • (1) Selector detent
  • (1) Selector detent spring
  • (1) Pivot pin
  • (1) Rear takedown pin
  • (2) Takedown detents
  • (2) Takedown springs
  • (1) Buffer retainer 
  • (1) Buffer retainer spring
  • (1) Magazine catch
  • (1) Magazine catch button
  • (1) Magazine catch spring
  • (1) Trigger guard assembly
  • (1) Trigger guard retaining pin
  • (1) A2 pistol grip made from high-strength injected nylon
  • (1) Slotted attachment screw
  • (1) Star lock washer

    (31 pieces in total)

    Compatible with:

    • All AR15 lower variants 
    • Plastic, aluminum and other metal lowers

    Installation Difficulty:

    Installation Notes: Building a lower is really easy, just be patient. You will need some oil, pin punches and possibly a soft-faced hammer for light tapping. Needle nose pliers help to hold the pins and you can use other punches as guides.


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