Rotundus Pattern plasma pistols lack the overloadability of most Imperial variants and are better engineered, and are thus they are safer and much more reliable.
Sidearm: Attacks with this trait can be used at range (using Ballistic Skill), and can also be used to make a single attack in close combat (using Weapon Skill).
If an attack with this trait has an Accuracy modifier, it does not apply in close combat.
Scarce: The Reload (Simple) action cannot be taken on a weapon profile with the Scarce trait.