Aero Precision M4E1 5.56 NATO Upper Receiver Carbine 16in G2 Handguard

The Aero Precision M4E1 5.56 ASSEMBLED UPPER RECEIVER CARBINE W/G2 HANDGUARD delivers a ready-to-build AR-15 platform with a rugged M4 contour, 16" barrel, and a black anodized finish that combines durability with a clean, streamlined profile. This assembled upper receiver pairs Aero Precision's proven engineering with the versatile G2 handguard, providing reliable mounting surface, improved grip, and enhanced heat management for extended range sessions. Designed for 5.56 NATO compatibility, it meaningfully supports precision-oriented rifle builds and tactical configurations, offering a solid foundation for shooters who value consistency, modularity, and performance. The upper's precision machining and integrated features ensure smooth chambering, reliable cycling, and repeatable accuracy, whether you're dialing in groups at the range or preparing a dependable platform for field use. With Aero Precision's reputation for fit and finish, this upper receiver assembly embodies a clean, professional look and dependable operation, enabling craftsmen and enthusiasts to tailor their rifles to exacting standards.