A Ghost rifle upper typically refers to a slim, lightweight AR-15 upper assembly featuring a minimalist “Ghost”-style free-float handguard for a sleek profile and accessory mounting. It usually includes a 5.56/.223 or 300 BLK barrel, low-profile gas block, gas tube, and sometimes a BCG and charging handle. Works with AR-15 lower receivers, standard AR-15 BCGs, charging handles, buffer systems, optics/iron sights on the top rail, and AR-15 magazines. Ideal for modern, lightweight builds.
