Heavy Counter Assault Rifle
Country of origin

United States


Ohio Ordnance Works

Production began


Weapon type

Battle rifle


.30-06 Springfield


Gas-operated, long-stroke piston

Barrel length
  • 16 inches
  • 20 inches
  • 11.75 lbs (16 inch barrel)
  • 12.5 lbs (20 inch barrel)
Magazine/Cylinder capacity

30 rounds (box magazine)

Cyclic rate


Maximum effective range

1200 meters[1]

The HCAR (Heavy Counter Assault Rifle) is a semi-automatic battle rifle made by Ohio Ordnance Works. It is a heavily modified derivative of the Browning Automatic Rifle built on an M1918A3 receiver.

Design detailsEdit

The HCAR is a modernized derivative of the M1918 BAR, with improvements such as the 45-degree selector switch, adjustable stock, takedown pins, bolt hold open, picatinny rails and carbon fiber trigger section. It also features an adjustable gas regulator (3-position) for suppressors, and a hydraulic buffer. It comes with either a 16" barrel or 20" barrel, with a 1/10 rifling twist rate and a 5/8-24 muzzle threading. The barrel is free-floated for better precision.

The HCAR fires from a closed bolt, is gas operated with a long stroke piston, and is fully compatible with any AR-15-style stock.[2]