One Horse HBAR Complete Upper 5.56 NATO 16" Barrel

$323.52 4 in stock

Complete AR-15 upper receiver with 16" HBAR barrel, 1:8 twist, 15" M-LOK handguard, nitride BCG, and charging handle. Free-float design for accuracy. Made in USA.

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One Horse HBAR Complete Upper Receiver

This is a no-nonsense complete upper receiver assembly designed for shooters who demand accuracy and reliability. Whether you're building your first AR-15 or upgrading an existing rifle, this upper delivers the performance you need.

Key Features

Barrel Performance

  • 16" HBAR profile barrel in 5.56 NATO
  • 1:8 twist rate for excellent velocity and stability
  • Heavy profile resists heat and maintains zero through extended shooting sessions
  • Delivers consistent, shot-to-shot accuracy

Handguard & Mounting

  • 15" M-LOK free-float handguard provides superior barrel stability
  • M-LOK slots accept a wide variety of modern tactical accessories
  • Free-floating design isolates the barrel from handguard pressure for improved accuracy
  • Full-length Picatinny rail on top for optics and backup sights

Reliability & Durability

  • Nitride-finished bolt carrier group cycles smoothly and resists corrosion
  • Minimal maintenance required
  • Clamp-on system with steel barrel nut ensures secure installation
  • Built to withstand demanding use

What's Included

  • 16" 5.56 NATO HBAR barrel with 1:8 twist
  • 15" M-LOK free-float handguard
  • Nitride bolt carrier group
  • Charging handle
  • Steel barrel nut and mounting hardware

Ready to Build

This complete upper is ready to pin onto any Mil-Spec AR-15 lower receiver. Made in the USA, it combines proven design with solid construction. Install it, add your optics, and get to work.