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  • LRPK-BLDR-308
  • LRPK-BLDR-308_b

308 Lower Parts Kit – Builder

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Lower Receiver Parts Builder Kit – .308

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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Lower Receiver Parts Builder Kit – .308


LR-01 Buffer Retainer 1-ea.

LR-02 Buffer Retainer Spring 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-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.









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