The Black Diamond Specter XL Top End 5.56mm Nato 16" Bbl 1-8 is a complete upper receiver assembly built to deliver dependable performance on your AR-15 platform. Featuring a 16-inch barrel chambered...

The Stag Arms Stag 15L Left Hand Tactical 10.5" Nitride Upper is a purpose-built upper receiver assembly for AR-style pistols and short-barreled rifles. Featuring a 10.5-inch nitride barrel paired...

The Del-Ton AR-15 Heavy Rifle Kit 20" Barrel 1:9 Twist brings together a complete upper assembly, A2 buttstock, and full lower parts kit to help you build a classic, rifle-length AR platform. The 20"...

The Radical Firearms Integrally Suppressed 300 Blackout Upper Blem pairs a 16" barrel with a built-in suppressor system to deliver a smooth, hearing-friendly shooting experience in a compact AR-15...

The Stag Arms Stag 15 Tactical 10.5" Nitride Upper is a compact AR-15 upper receiver assembly designed for shooters who want a short, maneuverable platform with modern ergonomics. Featuring a 10...

The Stag Arms Stag 15L Left Hand .300 Blackout 8 In Upper is a dedicated upper receiver assembly built to Mil-Spec standards for shooters running versatile 300 AAC Blackout loads. Featuring an 8-inch...

The Stag Arms Stag 15 Tactical Nitride Upper delivers a complete AR-15 upper receiver assembly built around a 16-inch nitride-treated barrel and slim, free-floated M-LOK handguard. Chambered in 5.56...

The Great Lakes Firearms And Ammun 223 Wylde Complete Upper Black Receiver Stainless Barrel is a ready-to-install AR-15 upper built around a sleek black receiver and a stainless steel barrel. The...

The Stag Arms Stag 15L Left Hand Super Varminter Upper is purpose-built for hunters and precision shooters who demand consistent performance from an AR-15 platform. This complete upper pairs a 20"...

The Stag Arms Stag 15L Left Hand Tactical Nitride Upper is a complete AR-15 upper receiver assembly built around a 16 inch 5.56 NATO barrel. Designed specifically for left-handed shooters, it...

The Stag Arms Stag 15 .300 Blackout 16 In Upper is a complete AR-15 upper receiver assembly built around a 16-inch barrel chambered in .300 AAC Blackout. Its medium contour barrel, classic birdcage...

The Stag Arms Stag 15L Left Hand Tactical 7.5" Nitride Upper is a compact AR-15 upper receiver assembly built around a 7.5-inch barrel and pistol-length gas system. Designed for left-handed shooters,...