AR15 A2 Lower Build Kit

$99.99 $49.99
You save: $50.00
Current stock: 0


Our AR15 A2 Lower Build Kit includes all the parts you need to assemble a stripped lower receiver into a precision lower half except for the buttstock. Choose from the options for a trigger group and safety selector configuration. We only use top quality parts in our kits.


This Lower Build Kit includes:

  • A2 Pistol Grip
  • Bolt Catch
  • Bolt Catch Plunger
  • Bolt Catch Roll Pin
  • Bolt Catch Spring
  • Buffer Retainer
  • Buffer Retainer Spring
  • Lock Washer
  • Magazine Catch
  • Magazine Catch Spring
  • Magazine Release Button
  • Pistol Grip Screw
  • Pivot Pin
  • 2x Pivot/Takedown detents
  • 2x Pivot/Takedown detent springs
  • Safety Detent
  • Safety Detent Spring
  • Safety Selector
  • Takedown pin
  • Trigger Guard
  • Trigger Guard Roll Pin
  • A2 buffer assembly
  • A2 extension receiver
  • A2 stock screw
  • A2 action spring
  • Buttcap spacer

SKU: STAG500014


Q: Do you have instructions or a video on how to install the kit?

A: We strongly recommend having a gunsmith install the lower parts kit to prevent damage during installation. Unfortunately we do not have instructions or a video on how to install the kit.

Q: Does Stag Arms use large pin or small pin?

A: We use the industry standard small pin. The trigger and hammer pins are .154" and the takedown and pivot pins are .250".


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