Description
The Luth-AR A3 .223/5.56 Upper Receiver is a stripped flattop upper designed for modern AR-15 builds. Precision machined from a 7075-T6 aluminum forging and finished with tough hardcoat Type III black anodizing, this upper features M4-style feed ramps for smooth feeding, a full-length 12-position Picatinny rail for optics or backup sights, shell deflector, forward assist housing, and provisions for an ejection port cover.
This versatile A3-style upper delivers excellent strength, corrosion resistance, and a clean, tactical appearance while accepting all standard AR-15 barrels, handguards, and components.
Features
- A3 flattop design with full 12-position Picatinny accessory rail
- M4-style feed ramps for reliable feeding with all ammunition types
- Shell deflector and forward assist housing included
- Ready for ejection port cover installation
- Precision machined from 7075-T6 aluminum forging
- Hardcoat Type III black anodized finish for maximum durability
- Weight: 7.7 oz
- Proudly made in the USA by Luth-AR









