AR-15 LPK - Basic Ambi Build Kit

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Everything you need for your custom build, and nothing you don't.  Just the basics from KAK.  

  • Bolt catch kit
  • Magazine catch kit
  • Takedown pin, detent, & spring
  • Pivot pin, detent, & spring
  • Buffer retainer pin & spring
  • Ambi Selector, detent, & spring
  • Hammer & trigger pins
  • Hammer, trigger, & disconnect spring

De-grease ambi selector screw threads and apply blue loctite when assemblying, Tq selector screws to 5-7 in/lbs or hand-tight 

Lower Parts Kit


  • 5
    LPKs should all be like this

    Posted by Joshua Denton on July 12, 2024

    Ambi lower parts kits should be the new standard. In fact at ScorpiusTactical in Reno NV, we did exactly that. We have the KAK Ambi kits as our standard.