The Spike's Tactical Gen 2 Billet Upper Receiver in 5.56 NATO offers a robust and reliable foundation for your AR-15 builds. Crafted from high-quality billet aluminum, this upper receiver features a mil-spec barrel nut, ensuring compatibility and durability. Its precision engineering provides a lightweight yet sturdy option for tactical applications and enhances overall firearm performance. Whether you're upgrading your existing setup or building a custom firearm, this upper receiver is an essential component for any serious gun owner. Intended Use: Ideal for AR-15 builds and custom firearms. Key Benefits: Lightweight design with exceptional durability and compatibility. Key Features: - Made from high-quality billet aluminum - Mil-spec barrel nut included - Compatible with 5.56 NATO caliber - Lightweight at only 0.7500 lbs Summary: The Spike's Tactical Gen 2 Billet Upper Receiver is designed for reliability and performance, making it the perfect choice for those looking to enhance their AR-15 platform for tactical applications and custom builds.