The Bushmaster AR-15 XM-15 QCR 5.56mm Complete Upper 16" w/BCG delivers a clean, optics-ready upper built around a 16-inch superlight barrel and a flat-top A3 receiver. The melonite-treated barrel with A2 flash hider is designed for long service life and easy maintenance, while the included bolt carrier group and charging handle make this a true drop-in solution for your AR-15 lower.

This complete upper is ideal for range use, training, and general-purpose carbine builds where reliability and simplicity matter. Its 5.56 NATO chambering and 1:9 twist rate support a wide range of commonly available ammunition, and the synthetic handguard offers a comfortable, no-nonsense grip. Bushmaster’s long-standing reputation for dependable AR-pattern rifles is reflected in this straightforward, well-executed upper receiver assembly.

• Manufacturer: Bushmaster
• Model: XM-15 QCR Complete Upper
• Caliber: .223 Rem/5.56 NATO
• Barrel Length: 16 inches
• Finish Color: Black
• Threaded Barrel: Yes
• What's In The Box: Complete upper, bolt carrier group, charging handle