The Freedom Ordnance FM-9D MLOK upper features an 8-inch barrel and is designed for 9mm caliber use. This upper offers a belt-fed, semi-automatic system and is compatible with Glock-type magazines, allowing for a capacity of 33 rounds.Key FeaturesBarrel Length: Equipped with an 8-inch barrel for compact configurations.Capacity: Accommodates a 33-round magazine, enhancing shooting duration.Color: Finished in black for a tactical appearance.