308 Lower Parts Kit – Complete


Lower Receiver Parts Kit – .308

Our .308 AR lower parts kit includes everything you need to fully assemble a stripped AR lower receiver. It includes a trigger, hammer, trigger guard, magazine catch, bolt catch, selector switch, and all necessary pins and springs. Made with high-quality materials for durability and longevity.

No MIM here. Luth-AR produces only the best quality, American made parts for the AR platform. All of the parts included in our lower parts kits are investment cast or otherwise machined to Mil-Spec drawings, materials and heat treat. Springs are a combination of 17-4 SST and various Mil-Spec steel wire are used in all of our springs with certification.

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SKU: LRPK-308 Categories: ,


Lower Receiver Parts Kit – .308


  • LR-01 Buffer Retainer 1-ea.
  • LR-02 Buffer Retainer Spring 1-ea.
  • LR-03 Trigger Guard 1-ea.
  • LR-04 Trigger Guard Pin 1-ea.
  • LR-08 Selector/Safety 1-ea.
  • LR-09 Bolt Catch Spring 1-ea.
  • LR-10 Bolt Catch Buffer (Plunger) 1-ea.
  • 308-LR-11 Bolt Catch 1-ea.
  • 308-LR-12 Bolt Catch Screw 1-ea.
  • LR-13 Magazine catch 1-ea.
  • LR-14 Detent Spring 2-ea.
  • LR-15 Takedown Detent 2-ea.
  • LR-16 Mag Catch/Buttstock Plunger Spring 1-ea.
  • LR-17 Magazine Catch Button, Aluminum 1-ea.
  • 308-LR-18 Front Pivot Pin 1-ea.
  • LR-19 Disconnector, AR15 1-ea.
  • LR-20 Trigger AR15 1-ea.
  • LR-22 Trigger Spring 1-ea.
  • LR-23 Pistol Grip Bolt 1-ea.
  • LR-24 Pistol Grip Lock Washer 1-ea.
  • LR-25 A2 Pistol Grip, Black Plastic 1-ea.
  • LR-26 Selector/Ejector Spring 1-ea.
  • LR-27 Detent (Selector) 1-ea.
  • LR-28 Hammer/Trigger pin 2-ea.
  • 308-LR-30 Pin, Rear Takedown 1-ea.
  • LR-31 Disconnector Spring 1-ea.
  • LR-32 Hammer Spring 1-ea.
  • LR-33K Hammer AR15, w/J Spring 1-ea.


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