Lower Parts Kit

SKU #5021A
Availability: In stock

* Required Fields


This lower receiver parts kit includes all the parts you need to assemble an AR-15 (or AR-10 variant) lower receiver into a lower half (recoil system and pistol grip not included). Our kits feature top quality American made parts.  Perfect for featureless AR builds including the FRS-15. 

Additional upgrades sold separately:

Damage Industries Ambidextrous Safety Selector, 45 Degree or 90 Degree throw.

Oden Works Extended Magazine Release



  • Buffer Retainer
  • Buffer Retainer Spring
  • Disconnector
  • Disconnector Spring
  • Trigger Guard Pin
  • Trigger
  • Trigger Spring
  • Trigger Pin
  • Hammer
  • Hammer Spring
  • Hammer Pin
  • Bolt Catch
  • Bolt Catch Pin
  • Magazine Catch
  • Magazine Catch Button
  • Magazine Catch Spring
  • Pivot Pin
  • Takedown Pin
  • Bolt Catch Plunger
  • Bolt Catch Plunger Spring
  • 2x Takedown & Pivot Pin Detent
  • 2x Takedown & Pivot Pin Detent Springs
  • Selector
  • Selector Detent
  • Selector Detent Spring

Made in USA

It is the responsibility of firearms dealers and private firearms owners to know and fully understand all federal, state, and local firearms laws in their area. Thordsen Customs LLC will not be held liable for any misuse of its products and will assume that our product(s) comply with state and local laws unless otherwise notified by authorities.

Write Your Own Review
You're reviewing:Lower Parts Kit
You may also be interested in the following product(s)