The Heavy Particle Accelerator is the larger cousin of the Light Particle Accelerator and the largest of its type carried by land vehicles. It benefits both from a range comparable to other projectile weapons and a massive electrical discharge which can burn out every electrical device on an enemy vehicle - and even its crew - with one shot. Following the invasion of the Colonial Expeditionary Force, many HPAs are based on designs salvaged from CEF vehicles.
- Purpose: Anti-Vehicle
- Effective Range: 800 m
- Penetration: 225mm (plus electrical damage)
- Accuracy: Good
- Mode of Fire: Single Shot
- Usual Ammo Load: 15 Shots
- ↑ Heavy Gears Rulebook (First Edition), p. 143