Cost +50 gp Weight +10 lbs.
Damage 1d4 (small), 1d6 (medium) Critical x2 Type piercing
Category light Proficiency martial
Weapon Groups close
You can have spikes added to your armor, which allow you to deal extra piercing damage on a successful grapple attack. If you are not proficient with martial weapons, you take a –4 penalty on grapple checks when you try to use armor spikes.
You can also make a regular melee attack (or off-hand attack) with the spikes, and they count as a light weapon in this case. You can’t also make an attack with armor spikes if you have already made an attack with another off-hand weapon, and vice versa.
An enhancement bonus to a suit of armor does not improve the spikes’ effectiveness, but the spikes can be made into magic weapons in their own right.
Pathfinder RPG Core Rulebook. Copyright 2009, Paizo Publishing, LLC; Author: Jason Bulmahn, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.