The Luth-AR UR-01-E3-M4 A1 Stripped Upper Receiver brings a classic C7-style profile to modern AR-15 builds. Forged from 7075-T6 aluminum and finished in a durable black hardcoat anodize, this upper combines the familiar A1 carry handle with integrated shell deflector and forward assist housing. Designed around Mil-Spec dimensions, it accepts a standard dust cover and features M4 feed ramps for reliable feeding with contemporary .223 Remington and 5.56 NATO ammunition.

This stripped upper receiver is ideal for shooters building a retro-inspired AR-15 that still benefits from modern functionality. The fixed carry handle is ready for an A1 adjustable rear sight, while the C7-style design allows scope mounting for range use, training, or general-purpose shooting. Paired with any Mil-Spec lower receiver, it offers a solid foundation for a dependable rifle that reflects Luth-AR’s attention to detail and commitment to quality machining.

• Manufacturer: Luth-AR
• Model: UR-01-E3-M4 A1 Stripped Upper Receiver
• Caliber: .223 Rem/5.56 NATO
• Receiver Style: Stripped A1/C7 carry handle upper
• Receiver Material: 7075-T6 aluminum
• Receiver Finish Color: Black hardcoat anodize
• Feed Ramp Style: M4 feed ramps
• Compatibility: Mil-Spec AR-15 lower receivers