AR15 LPK - Basic Custom Lower Build Kit - Nitride

$32.95 - $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 1 rating)
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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.