Luth-AR | LUTH AR 16″ LTWT BBL COMP UPPER 223

The Luth-AR 16″ Lightweight Complete Upper is a factory-finished AR-15 upper assembly built around a 16-inch barrel chambered in .223 REM/5.56 NATO. It ships as a complete barrel assembly that includes a bolt carrier group, charging handle, forward assist and ejection port cover. This configuration is suitable for range training and precision target shooting.

The Luth-AR assembly starts with a 16″ .223 Remington lightweight barrel made from 4140 Chrome Molly with a 1-9″ twist mated to an A3 Flattop receiver which includes a bolt carrier, charging handle, forward assist and ejection port cover. The upper is then topped off with a low-profile gas system and an ergonomic 15″ Palm Handguard with KeyMod slots and a Picatinny top-rail.

Product Specifications

• The manufacturer is Luth-AR.
• The model is 16″ Lightweight Complete Upper.
• The product type is a Upper assembly.
• The upper fits AR-15 platform receivers.
• The caliber is .223 REM/5.56 NATO.
• The barrel length is 16″.
• The barrel material is 4140 Chrome Molly.
• The twist rate is 1:9.
• The receiver style is A3 Flattop.
• The assembly includes a bolt carrier group, charging handle, forward assist and ejection port cover.
• The gas system is a low-profile gas system.
• The handguard is a 15″ Palm Handguard with KeyMod slots.
• The top rail is a Picatinny top-rail for optics and accessories.
• The finish/color is Black.
• The UPC is 812058030171.

As a ready-to-install complete upper, this Luth-AR unit simplifies assembly for builders who want a lightweight 16-inch configuration with modular accessory mounting. The combination of a 4140 chrome-moly barrel, included bolt carrier group and a 15″ KeyMod handguard provides a practical balance of durability, modularity, and straightforward installation for range-focused and precision shooting builds.