An AR-15 assembled upper is a fully built upper receiver unit for AR-15 rifles, ready for installation onto a lower receiver. It typically includes the upper receiver, barrel, hand guard, gas system, forward assist, dust cover, and sometimes a bolt carrier group and charging handle. The AR-15 assembled upper works with AR-15 lower receivers, magazines, buffer systems, and standard AR-15 parts, making it ideal for quick builds, upgrades, or caliber conversions in target shooting, hunting, or tactical applications.
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