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  • LRPK-1
  • lower_exploded

Lower Receiver Parts Kit – AR15

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Lower Receiver Parts Kit – AR15

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.



Parts Schematic

Lower Receiver Parts Kit – AR15


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.

LR-11 Bolt Catch 1-ea.

LR-12 Bolt Catch Roll Pin 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.

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.

LR-30 Pin, Rear Takedown 1-ea.

LR-31 Disconnector Spring 1-ea.

LR-32 Hammer Spring 1-ea.

LR-33K Hammer AR15, Mil-Spec w/J Spring 1-ea.


SKU: LRPK-1B — Not Packaged for retail display





.223 / 5.56

Manufacture Method


Packaging Option

Bulk Packaging – non-Retail, Packaged for Retail


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