Pierce
Pierce delivers a powerful charged shot; the supplied guide says its shot takes about a second to charge and uses half the ammo.
How it works
IGN says Pierce's bullets can travel through flimsier surfaces. The mod list includes Pierce Aimed Fire Boost, which increases damage when aiming, and Pierce Zoom Boost, which increases zoom. IGN lists availability at Old Boys' Club; the Ultimate Edition page names Main Mission 4. This reference records the charged shot and mod effects without assuming damage rankings against other forms.
Read the supporting references
A focused reference to Service Weapon forms and selected named Weapon and Personal Mods. It covers form behavior, several mod effects, and cited availability or slot rules. It does not attempt complete coverage of abilities, all equipment, exact upgrade costs, or comparative effectiveness. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.