AR15 LPK - Basic Custom Lower Build Kit - Nitride

$39.95 - $47.95

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100% USA Made.

Our lower parts kits are a phenomenal value.  All parts are properly made right here in the USA.  No foreign pieces.  All components are properly heat treated before plating, so they will last a life time.

Perfect for builds using aftermarket grips , fire control groups, and trigger guards or receivers with built in trigger guards.  Why waste money on parts you'll never use.

This kit has components that have recieved a QPQ Nitride treatment by H&M for a shinier and more wear resistant finish.

  • Components made to the Rock Island prints
  • Properly heat treated prior to an H&M "Black Nitride" treatment
  • Selector detent and takedown pin detent properly cadmium plated
  • Takedown pin and pivot pin have added dimples on the end to aid in removal
  • Single lever selector is reversable for right side or left side installation
  • Schmid Tool ambidextrous selector available
  • All parts inspected for quality prior to packaging


  • Pivot Pin - Nitride
  • Takedown Pin - Nitride
  • Buffer Retainer Pin - Nitride
  • Bolt Catch Detent - Nitride
  • Selector Detent - Cadmium
  • Takedown / Pivot Pin Detent (2) - Cadmium
  • Fire Control Group Pins (2) - Nitride
  • Bolt Catch Roll Pin - Phosphate
  • Magazine Catch and Button - Phosphate / Anodize
  • AR15 Selector - Reversable - Phosphate - Schmid Tool
  • (Optional) Schmid Tool Ambidextrous Selector
  • Bolt Catch - Phosphate - Schmid Tool
  • All Required Springs

Not Included:

  • Pistol Grip & Screw
  • Fire Control Group
  • Trigger Guard

Product Reviews

Score: 5 out of 5 (based on 2 ratings)
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Legit Product
Written by Josh on 17th Mar 2024

Product works as intended. No issues with out of spec stuff. Will likely buy another one in the future.

Good Kit
Written by Anthony on 4th Oct 2022

Very glad this kit is nitride coated. Hopefully it will aid a bit in preventing any rust. Kit went in well. The only thing is, I wish the Bolt Catch roll pin was a coil type roll pin instead of split roll pin. Those roll pins are always a pain to get in and this roll pin was pretty solid. I had just a bit of difficulty getting it in my Zev lower. But everything else was great.