Luth-AR .308 Lower Receiver Parts Kit – AR-10 Pattern

The Luth-AR .308 Lower Receiver Parts Kit provides all the essential components to complete an AR-10 pattern lower receiver. This kit includes the trigger assembly, hammer, disconnector, selector, magazine catch, bolt catch, and all necessary springs, detents, and pins—everything except the pistol grip and trigger guard. Designed for builders who want reliable, mil-spec components without unnecessary frills, this kit is ideal for completing a custom .308 AR build or replacing worn parts in an existing rifle.

Manufactured from heat-treated steel and machined aluminum where appropriate, each component meets mil-spec dimensions for drop-in compatibility with standard AR-10 lower receivers. The parts feature a black oxide finish for corrosion resistance. Installation requires basic armorer's tools and familiarity with AR-platform assembly—punches, hammer, and a lower receiver vise block are recommended. A complete parts diagram is included.

• Part Type: Lower Receiver Parts Kit
• Compatible Firearms: AR-10 / .308 AR Pattern Lower Receivers
• Material: Heat-Treated Steel, Machined Aluminum
• Finish: Black Oxide
• Installation: Drop-In with Basic Armorer's Tools
• Includes: Trigger Assembly, Hammer, Disconnector, Selector, Magazine Catch, Bolt Catch, Springs, Detents, Pins (Does Not Include Grip or Trigger Guard)