Weapon Group (Monk Weapons)

Type: Weapon Group
Source: Unearthed Arcana

You understand how to use weapons normally favored by monks.
Prerequisite: Improved Unarmed Strike.
Benefit: You make attack rolls with the following weapons normally: kama, nunchaku, quartersoaff, sai, shuriken, and siangham.
Normal: When using a weapon with which you are not proficient, you take a -4 penalty on attack rolls.