Rock River Arms CAR A4 Complete Upper 350 Legend 16" – AR-15 Platform

The Rock River Arms CAR A4 Complete Upper in 350 Legend pairs straight-wall cartridge performance with AR-15 platform compatibility. Chambered in 350 Legend, this 16-inch complete upper assembly delivers effective hunting performance within straight-wall cartridge jurisdictions while maintaining familiar AR ergonomics and controls. The A4 flat-top configuration provides a full-length Picatinny rail for optics mounting.

This complete upper arrives ready to install on any mil-spec AR-15 lower receiver. Rock River Arms manufactures this upper with forged construction and a durable finish. The assembly includes bolt carrier group and charging handle. Installation requires only standard AR-15 takedown pins—no gunsmithing or permanent modifications needed. Includes one 10-round magazine.

• Caliber: 350 Legend
• Type: Complete upper assembly
• Compatible Lower: Mil-spec AR-15
• Barrel Length: 16 inches
• Configuration: CAR A4 flat-top
• Includes: Bolt carrier group, charging handle, 10-round magazine
• Installation: Drop-in with standard takedown pins