Atlas Bal-27

The Atlas Bal-27 is a bullpup assault rifle chambered in 5.56mm NATO, designed and used primarily by the Atlas Corporation. Originally designed for use by Atlas Corporation Agents, the Bal-27 features multiple accessory rails to allow for quick and easy customization in the field, allowing the user to alter the weapon to their mission on the fly.

The Atlas Bal-27 has accessory rails on the top of the rifle, under the barrel, and on both sides for attaching accessories.