Purchase AR upper parts online with nationwide shipping, or pick it up at our gun store in El Dorado Springs, Missouri. Enhance your AR build with high-quality AR upper parts from Bear Arms, proudly serving El Dorado, MO. This category offers robust components—barrels, gas systems, bolt carrier groups, and handguards—that ensure accuracy and reliability under demanding conditions. Whether you’re customizing for enhanced performance, creating a precise shooting platform, or replacing worn upper parts, each component is engineered for seamless integration and long-term durability. Complete your AR setup by pairing these upper parts with dependable AR lower parts, compatible magazines, and quality rifle ammunition for the ultimate shooting experience. Shop AR upper parts online or stop by Bear Arms in El Dorado for expert advice and fast shipping.
At Bear Arms, proudly serving El Dorado, MO, we provide a full lineup of AR upper parts engineered for accuracy, durability, and seamless integration with your AR platform. Our selection includes match-grade barrels, gas systems, bolt carrier groups, and handguards—each designed to deliver consistent performance whether you’re building a lightweight carbine, upgrading for precision shooting, or replacing worn parts. From close-quarters builds to long-range configurations, these upper components are built to handle demanding conditions and maintain reliable function shot after shot.
Our AR upper parts are compatible with a wide range of calibers, including the versatile .223 REM/5.56 NATO, powerful .30 Caliber, suppressed-ready .300 AAC Blackout, heavy-hitting 7.62mm, and pistol-caliber 9mm AR setups. This flexibility allows shooters to configure their rifle for everything from competition and hunting to tactical and defensive use. Pair your upper components with our dependable AR lower parts, AR magazines, and rifle ammunition for a fully optimized system.
We proudly stock AR upper parts from leading brands such as Aero Precision, Armaspec, ATI Outdoors, B5 Systems, GrovTec, Leapers, and TacFire. Known for their precision engineering and rugged construction, these manufacturers are trusted by builders and shooters across the country.
At Bear Arms, we’re committed to supporting both new builders and experienced gunsmiths in El Dorado, MO. Shop AR upper parts online today for fast shipping, or visit us in-store for expert service and personalized recommendations for your AR build.
