Rock River Arms Completed Upper Receiver .223/5.56mm 16 Inch Barrel Carbine Profile 1/2-28 Thread Car Handguard A2 Flash Hide w/Gas Block Black

Rock River Arms

Overview

The Rock River Arms Completed Upper Receiver is designed for AR-15 builds, featuring a 16-inch barrel optimized for the 5.56 NATO caliber, making it a versatile choice for both tactical and recreational shooting. Fully assembled and ready to install, this upper includes a carbine profile and a threaded muzzle with a 1/2x28 pitch, allowing for easy attachment of suppressors or muzzle devices. Commonly found in carbine-style builds, this upper receiver offers a solid foundation for a reliable shooting experience.