Weapon Groups

Blades, Long

Double walking stick katana, katana, saber, no-dachi, scythe, seven-branched sword, temple sword, urumi

Blades, Short

Bich'hwa, bowie, kama, knife, kunai, wakizashi

Close

Blackjack, brass knuckles, emei piercer, fighting fan, hook hand, punching dagger, spiked knuckles, spring blade, tekko-kagi, unarmed strike, wooden stake

Double

Bo staff, chain spear, double-chained kama, double walking stick katana, gunaxe, gunblade, kusarigama, quarterstaff

Flails and Whips

Bullwhip, kyoketsu shoge, lasso, meteor hammer, nine-section whip, siangham, urumi

Hammers and Clubs

Blackjack, dan bong, mere club, nunchaku, sai, tetsubo, warhammer

Heavy 

Autocannon, heavy cannon, rocket launcher, rotary cannon, stutter gun.

Longarms

Autorifle, binary rifle, double-barreled shotgun, pump-action shotgun, shotgun, rifle, scoped rifle, syringe rifle

Monk

Anything with the monk special property, unarmed strikes

Natural

Bite, claw, gore, hooves, pincers, slam, tail slap, unarmed strike, wing buffet

Polearms

Bo staff, collapsible kumade, kumade, naginata, quarterstaff

Sidearms

Derringer, revolver, scorpion, syringe pistol

Spears

Bayonet, boarding pike, longspear, shortspear, spear

Stealth

Compound longbow, compound shortbow, crossbow, longbow, repeating crossbow, shortbow, shuriken cannon, syringe pistol, syringe rifle

Thrown

Boomerang, chakram, kunai, kyoketsu shoge, lasso, shortspear, shuriken, spear