byond - Modules - Types — Proc Details

shield_bash
/datum/action/ability/activable/weapon_skill/shield_bash

Procs
trigger_offhand	Shield bashes with right click when in offhand

Proc Details

proc
trigger_offhand
(/mob/mob_source, /atom/object, /turf/location, control, params, bypass_checks)

Shield bashes with right click when in offhand