Luth-AR

Luth-AR manufactures core components for AR-15 and AR-10 rifles. They focus on the essentials—uppers, lowers, bolt carrier groups, buffer systems, and handguards—without the marketing fluff.

Upper Receivers - A1/C7 stripped and assembled versions - M4 feed ramp and slick-side configurations - Built to mil-spec standards

Lower and Lower Parts - Builder lower parts kits (AR-308 compatible) - Stripped lower receivers - Individual components for custom builds

Bolt Carrier Groups - .223/5.56 NATO (AR-15) - .308 Winchester (AR-10) - Complete and ready to function

Buffer Systems - Carbine and rifle length tube assemblies - Multiple buffer weights (3.0oz to 5.4oz) - H1, H2, H3 options for tuning different loads

Handguards and Hardware - A1 triangular handguards (classic or black) - Firing pins, extractors, cam pins - Retaining pins and o-rings

Most components stay in stock and ship quickly. Prices range from under $5 for individual parts to around $190 for complete bolt carrier groups. They list 38+ products with regular availability.

They've been making AR parts long enough to understand what builders actually need. No unnecessary features. Mil-spec dimensions. Components that work with standard parts from other manufacturers. Good for gunsmiths restocking, builders filling gaps, or replacing worn parts.