The WMD NIB-X Upper Receiver 5.56 is a forged A3/A4 upper receiver designed for AR-15 enthusiasts seeking durability and performance. Crafted from 7075 T6 aluminum, this stripped upper receiver features M4 feed ramps and is coated with NiB-X for superior wear resistance and lubricity. Its exceptional build quality makes it an ideal building block for custom firearm assemblies and tactical applications, ensuring long-lasting reliability in the field. Intended Use: Perfect for AR-15 builds and tactical use. Key Benefits: Provides a tough and ultra-smooth surface finish for enhanced performance. Key Features: - Forged AR-15 Upper Receiver - NiB-X Finish for outstanding wear resistance - M4 Feed Ramps for reliable feeding - Made from 7075 T6 Aluminum for superior strength Summary: Whether you're building a custom AR-15 or upgrading your existing setup, the WMD NIB-X Upper Receiver 5.56 ensures you have the reliability and performance needed for any mission, making it a smart choice for serious firearm enthusiasts.