LUTH-AR | AR-308 Lower Parts Kit | LRPK-BLDR-308

This Luth-AR AR-308 lower parts kit provides the parts required for assembling a lower receiver on the AR .308 platform. Components are American made and are investment cast or machined to Mil‑Spec drawings and heat-treat standards. Springs supplied in the kit are made from a combination of 17-4 SST and various certified Mil‑Spec steel wire. The kit is intended for builders assembling a functional AR .308 lower from a compatible lower receiver.

Applications include use in precision rifle builds and long-range/practical competition platforms where Mil‑Spec lower parts are preferred. It is also suitable for general AR .308 maintenance and component replacement projects.

Product Specifications

• The manufacturer is LUTH-AR.
• The product type is a Lower Parts Kit.
• The model is listed as the 308 Lower Parts Kit.
• The kit is specified for 308 Cal.
• The listed material is Stainless Steel.
• Components are made in the U.S. and are investment cast or machined to Mil‑Spec drawings.
• Springs are manufactured from 17-4 SST and Mil‑Spec steel wire with certification.
• The intended platform is AR .308.
• The description indicates this is a Lower Receiver Parts Kit 308.
• The subcategory is Long Gun Parts.
• The catalog category is AR Lower Parts Kits.
• UPC: 812058030270.

This kit delivers vetted, Mil‑Spec lower parts and certified springs as a practical foundation for a reliable AR .308 lower assembly. Whether you are building a precision-oriented rifle or refreshing a long-range platform, the kit’s proven materials and manufacturing methods make it a straightforward choice for builders who prioritize specification compliance and material certification.