From Pathfinder #179: Cradle of Quartz, which isn't enabled.

Iron Dart Launcher

HAZARD 4

Stealth +15 (expert)

Description A half‑dozen iron darts fire from spring‑loaded launchers concealed in the desk opposite the front door.

Disable DC 22 Thievery (trained) to disable the trigger, or DC 18 Acrobatics to squeeze through the partially opened door (this doesn't disable the trap but prevents it from triggering)

AC 22; Fort +14, Ref +8

Hardness 10, HP 50 (BT 25); Immunities critical hits, precision

Dart

Trigger The front door is fully opened, Forced Open, or broken

Effect A hail of iron darts launches along a 20-foot line from the desk through the doorway, dealing 4d8+10 piercing damage to each creature in the area of effect (DC 24 basic Reflex).

Reset The trap resets as soon as the door is closed. It has enough darts to trigger three times, after which, it must be reloaded with 20 darts before it can reset again.

Pathfinder #179: Cradle of QuartzOGL