AR-308 LOWER PARTS KIT – AR-308 LOWER PARTS KIT – COMPLETE

308 LOWER PARTS KITS

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.

Luth-AR’s .308 AR complete 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.

COMPLETE KIT INCLUDES:

  • 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.

BUILDER KIT INCLUDES:

  • 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.
Description

Original price was: $75.19.Current price is: $55.98.

308 LOWER PARTS KITS

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.

Luth-AR’s .308 AR complete 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.

COMPLETE KIT INCLUDES:

  • 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.

BUILDER KIT INCLUDES:

  • 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.

2 in stock

SKU 430107611 Category

Description

308 LOWER PARTS KITS

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.

Luth-AR’s .308 AR complete 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.

COMPLETE KIT INCLUDES:

  • 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.

BUILDER KIT INCLUDES:

  • 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.

Additional information

Weight 2 lbs
Make

AR .308

Make/Model

AR .308

Frequently Asked Questions

Are these brass cases and reloading components factory-new or once-fired? +

We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.

Will this case trimmer gauge or die set work with my progressive press setup? +

Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.

Do you enforce shipping restrictions on powder, primers, or live ammunition? +

Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.

How can I track my shipment to ensure delivery safety? +

Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.

Can I return precision measuring tools or die components if they don’t fit? +

We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.