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trap spikeshooter

From Quake Wiki

Trap: Spike Shooter

Description: A nail-firing trap that fires once it is triggered by another entity. In example a trigger box.

classname "trap_spikeshooter"
origin Origin in X Y Z coordinates.
angle"#" Angle the trap fires at.
targetname "#" Trap's trigger name
spawnflags "#"  ??? 1024 works

Source: http://www.gamers.org/dEngine/quake/QDP/qmapspec.html#2.3.1