Workbench: Ranged weapon upgrades fall into three categories: targeting scopes, firing chambers, and power packs. Targeting scopes can be used by many types of ranged weapons and can improve accuracy, increase critical threat range, or hinder targets. Firing chambers can be used by many normal ranged weapons and typically improve damage, accuracy, and critical hit damage. Power pack upgrades are only suitable for a few types of blasters. They have effects similar to those of firing chambers.
Almost all targeting scopes, and all power packs and firing chambers, can be created using a workbench with sufficient skill rank and components.
Unlike the first two Marks, Mark III has an Enhancement Bonus rather than just an Attack Bonus, granting Attack Modifier: +1 and Damage Bonus: 1 of the same type as the weapon itself for 3-17 (2d8 +1) in total.