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Discover our range of AR15 assembled upper receivers, offering a ready-to-go solution for your rifle build. Featuring top brands like Aero Precision, Radian Weapons, Battle Arms Development, SOLGW, Daniel Defense, Spike's Tactical, Ballistic Advantage, Odin Works, Lantac USA, and Faxon Firearms, these upper receivers are expertly assembled to deliver reliability and precision. Perfect for those who want the convenience of an assembled upper without sacrificing quality, Aerospace Arms has you covered.