AR15 Uppers

Build precision rifles with AR-15 upper receivers from Crossfire Gunsmith & Firearms in Lexington, SC. These quality uppers accommodate 5.56 NATO, .223 Remington, and .300 Blackout cartridges, providing the strong foundation needed for accurate, reliable shooting performance.

Our AR-15 upper selection includes stripped receivers for custom builds and complete assemblies ready for installation. Whether you’re building a tactical carbine or precision DMR, quality uppers ensure proper headspacing and reliable cycling across multiple calibers.

Quality uppers feature precision machining, mil-spec compatibility, and reinforced construction that withstands demanding use. From basic forged receivers to premium billet options with enhanced features, proper upper selection ensures reliable function and attractive appearance.

Completing your build? Check out our AR-15 lowers and browse AR-15 barrels for matched components.