One Horse HBAR Complete Upper 5.56 NATO 16" Barrel

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.