One Horse HBAR Upper 5.56 NATO/.223 Rem 16 in

Description

The One Horse HBAR complete upper is chambered for .223 Remington/5.56 NATO and features a 16-inch HBAR barrel with a 1:8 twist rate. Its 15-inch free-float M-LOK handguard supports accessory mounting, while the included nitride bolt carrier group and charging handle provide a ready-to-assemble upper receiver configuration.

The upper includes a full-length Picatinny rail, a mid-length gas system, and a clamp-on assembly with a steel barrel nut and screws. It is described as compatible with a Mil-Spec AR-15 lower receiver.

Key Specifications

• The cartridge designation is .223 Remington/5.56 NATO.
• The barrel measures 16 inches and uses an HBAR contour.
• The barrel has a 1:8 twist rate.
• The gas system is mid-length.
• The muzzle threads measure 1/2-28.
• The handguard measures 15 inches and uses the M-LOK mounting system.
• The barrel material is listed as 4150.
• The finish is listed as matte black.
• The assembly includes a nitride bolt carrier group and charging handle.
• The UPC is 850078799784.

SKU: not provided in the supplied product data.

With its HBAR barrel, free-float handguard, mid-length gas system, and included operating components, this upper offers a practical foundation for a compatible AR-15 build or replacement configuration.

Specifications