The WMD Guns Nib-X Upper Recr 5.56 Stripped upper receiver is built as a durable foundation for your next AR-15 build. Forged from 7075-T6 aluminum to true mil-spec dimensions and finished with WMD’s proprietary NiB-X coating inside and out, this A3/A4 upper with M4 feed ramps offers a smooth, corrosion-resistant surface that enhances reliability over extended use.

This stripped upper receiver is ideal for shooters who want to customize every component of their rifle while starting with a precise, high-quality core. The NiB-X finish helps reduce friction for easier cleaning and consistent cycling, making it well suited for range use, training, and general-purpose AR builds. WMD Guns is known for its attention to detail and advanced surface treatments, delivering components that balance longevity, performance, and clean machining.

• Manufacturer: WMD Guns
• Model: Nib-X Upper Recr 5.56 Stripped
• Caliber: 5.56x45mm NATO
• Type: Upper
• Length: 8.75 inches