The ArmaLite M15 Versatile Sporting Rifle Upper is a precision-built AR-15 upper receiver assembly featuring a 20" chrome-lined barrel chambered in 5.56mm NATO, delivering enhanced muzzle velocity and long-range accuracy. Machined from aircraft-grade 7075-T6 aluminum with a Type III hard-coat anodized finish, the upper is built for durability and long-term reliability under demanding conditions. It comes complete with a forward assist, ejection port dust cover, front sight base, and A2 flash hider, making it ready to mount directly onto any mil-spec AR-15 lower receiver. The chrome-lined barrel ensures superior corrosion resistance and easy maintenance, extending the service life of the rifle over thousands of rounds. Whether used for competition, hunting, or recreational shooting, the UM15VSR reflects ArmaLite's decades of experience producing some of the most trusted rifles in the industry. Armalite M15 Versital Sporting Rifle Upper 20" bbl UM15VSR