ATI MilSport Complete Upper 5.56mm 7.5" Barrel, Black - ATI15MS556ML7

Complete AR-15 upper receiver assembly in 5.56mm NATO with a 7.5" black nitride barrel, 7" M-LOK rail, and includes bolt carrier group and charging handle. The upper features a 1:8 twist rate barrel and is ready to install on any AR-15 lower receiver.