AR15 Lower Parts Kit - Pin & Detent Kit - Nitride

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SKU 201-0203-002

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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 completely custom 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.

Selector and pivot/takedown pin detents have been properly cadmium plated.

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

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

Not Included:

  • Pistol Grip & Screw
  • Fire Control Group
  • Trigger Guard
  • Selector
  • Mag Catch Assembly
  • Bolt Catch
  • Springs

Product Reviews

Score: 5 out of 5 (based on 1 rating)
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Great spare parts
Written by Anthony on 4th Oct 2022

The push pins look great on my lower. Some pins get a nice patina on them when they get older and used a lot. These being nitride, we'll see how long they stay nice and black. No complaints, it's great to have spare parts.