Luth-Ar AR-308 Lower Parts Kit – Builder

The Luth-Ar AR-308 Lower Parts Kit - Builder provides the internal components intended for assembling an AR-platform .308 lower. Components are American-made and produced to Mil-Spec drawings, with investment-cast or machined parts and certified springs. Spring materials include 17-4 SST and Mil-Spec steel wire as noted by the manufacturer.

Key Specifications

• Designed for the AR platform in 308 Cal.
• Primary material listed as Stainless Steel.
• This item is a Lower Parts Kit for AR .308 lowers.
• Cataloged under Long Gun Parts subcategory.
• Model identified as 308 Lower Parts Kit.
• Manufacturer/Model reference: AR .308.
• Make is listed as AR .308.
• Product description: Lower Receiver Parts Kit 308.
• Parts are investment cast or machined to Mil-Spec drawings.
• Springs use 17-4 SST and Mil-Spec steel wire with certification.

Focused on quality and specification compliance, this kit supplies the Mil-Spec internal parts and certified springs specified for AR .308 lower builds. Its American-made construction and stamped manufacturing details make it suitable for builders who prioritize specification adherence and component traceability in their AR-platform projects.