Upgraded Sensor Pack – Provides radar while you're aiming. Enhances your radar resolution while crouched. Visually marks targets. Deals more damage to low-health marked targets. Provides a small benefit to the airborne effectiveness stat of all weapons.

Insectoid Robot Grenades – This weapon's grenades are insectoid robots that chase targets and explode close to them. Consumes tougher combatants to create additional robots.

Rapid-Fire Frame – Deeper ammo reserves. Slightly faster reload when magazine is empty.

Legacy PR-55 Frame – Customized frame with dramatically increased accuracy, stability, and targeting while hip firing.