Product DescriptionThe JE Machine Tech PS-223MLK4KBLK-F-NAR is a lightweight AR-15 upper receiver component designed for shooters seeking a compact setup with added rail space. Built from aluminum and finished in black, this upper receiver features a 4-inch rail that supports a streamlined profile while maintaining strength and durability. Its minimal-length design makes it a practical choice for firearm customization, upgrades, and compact AR-platform builds.Product Highlights Lightweight AR-15 upper receiver component with a compact 4-inch rail for streamlined builds Durable aluminum construction helps balance strength, corrosion resistance, and reduced weight Black finish delivers a clean tactical appearance and added surface protection Designed for AR-15 platform customization and performance-focused upgrade applications Minimal rail length supports maneuverability in tight, compact firearm configurations Specs Product Type: Upper Receiver Platform: AR-15 Rail Length: 4 inches Material: Aluminum Finish: Black Color: Black Dimensions: 4.80 in D x 2.70 in W x 2.50 in H UPC: 811577036824 MPN: PS-223MLK4KBLK-F-NAR Brand Name: JE MACHINE TECH Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.