Aero Precision Standard Lower Parts Kit for AR-15

Original price was: $64.99.Current price is: $59.87.

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SKU: APRH100029C UPC: 815421020823

Product Description

Aero’s lower parts kit helps you to build a custom AR15 from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.


  • Takedown/pivot Spring
  • Takedown/pivot detent
  • Trigger/hammer pin
  • Takedown pin
  • Pivot pin
  • Bolt Catch
  • Bolt Catch Spring
  • Bolt Catch buffer
  • Bolt catch roll pin
  • Safety Selector
  • Safety Selector spring
  • Safety Selector detent
  • 4-40 Set Screw (for threaded takedown pin detent hole)
  • Buffer retainer
  • Buffer retainer spring
  • Trigger guard
  • Trigger guard roll pin
  • A2 pistol grip
  • Pistol grip screw
  • Pistol grip lock washer
  • Trigger spring
  • Hammer spring
  • Disconnector spring
  • Magazine catch body
  • Magazine catch spring
  • Magazine catch button
  • Hammer
  • Trigger
  • Disconnector


  • Made in the USA
  • Built for AR-15
  • Weighs 7.5oz




Technical Information

Color / Pattern
Firearm Compatibility

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit

Customer Reviews

Based on 1 review
Zachary H.
Easy to assemble, just watch those detents

I received a good quality set of parts that were easy enough to assemble for a first timer. I got even greater customer service with my order as well. Highly recommended to deal with MilSpec Retail