These are modifications that you can place on your weaponry to make them more suitable to your liking.
Swords
Blade
Serrated ( -1 power, +5 durability )
Razor ( +10 crit, -5 durability )
Piercing ( +2 power, -5 crit, -5 hit )
Huge ( +1 range, +5 power, +10 weight, -10 hit, -10 crit )
Balanced ( +3 Hit, +1 Weight )
Guard
Sturdy ( +3 hit, +1 weight )
Empty ( +5 crit, -5 hit )
Locking (+1 weight, -10 hit to melee range enemies )
Full ( +1 defense, +4 weight )
Razor ( +1 Power, +1 Weight, -1 Defense )
Hilt
Firm (+3 hit, -2 durability )
Insulated ( +5% lightning res, -1 power )
Wooden ( -3 weight, -1 durability )
Sharp ( +1 power, -5 hit )
Onigan ( +5 Critical, -5 Hit )
Axe/Spear
Axehead
Tempered ( -1 power, +5 durability )
Cutting ( +10 crit, -5 hit, -1 power )
Spiked ( +2 power, -5 durability, +10% crit damage )
Curved ( +5 Hit, -1 Power )
Guillotine ( +3 power, +1 weight, -5 hit )
Spearhead
Barbed ( +5 crit, +1 power, +2 weight )
Crescent ( +10 hit, -5 crit )
Hollow ( -2 power, -5 weight )
Hooked ( +1 power, -5 crit, deals damage when 1 range enemies are moved by you )
Thin ( +2 Power, -2 Weight, -5 Hit )
Pole
Wooden (-5 weight, -2 durability )
Curved ( +5 crit, -1 power )
Helix ( +1 power, +2 weight, -4 hit )
Extended ( +10 hit, -1 power )
Flexible ( +5 Durability, -5 Hit )
Bow
Body
Compact ( -1 range, -4 weight, +15 crit )
Focused ( +5 hit, -3 durability )
Large ( +1 range, +6 weight )
Composite ( +2 power, -5 crit )
Thin ( -4 weight, -1 power )
String
Silk ( +5 hit, +2 durability, -2 power )
Tight ( +5 crit, -5 hit )
Double ( +10 durability, -15 crit )
Wire ( +1 power, -3 durability )
Chain ( +10 Weight, +2 Power )
Arrow
Fire ( +1 power, -5 crit, fire damage type )
Light ( -5 hit, +5 crit, light damage type )
Sharp ( +10 crit, -5 hit )
Thin ( -1 Power, +5 hit )
Heavy ( +2 Power, +5 weight, -5 hit )
Fist
Knuckles
Dense ( +2 power, -3 durability )
Elongated ( +8 crit, +4 weight )
Leather ( +10 hit, -2 power )
Spiked ( +1 power, -4 hit, pierce damage type )
Wrapped ( +6 Durability, -4 Critical )
Wrist
Guard ( +2 defense, +2 weight )
Spiked ( +1 power, +2 weight )
Strings ( +4 hit, -2 durability )
Loose ( +4 Durability, -6 Hit )
Weighted ( +8 Weight, -5 hit, +10 Critical, +5% Critical Dmg )
Guns
Barrels
Short ( +2 Power, -1 Range )
Wide ( +5 Durability, -5 hit )
Long ( +1 Range, -5 Critical
Double ( +10 Hit, +5 Weight ) <SHOTGUN ONLY>
Sniper ( +25 Critical, +5 Weight ) <SNIPER ONLY>
Grips
Soft ( +5 Durability, -5 Hit )
Steady ( +5 Hit, -5 Critical )
Revolver ( +5 Critical, -2 Durability )
Extended (+1 Round, -4 Hit, +4 Weight ) <HANDGUN ONLY>
Custom ( +3 Hit, +3 Critical, +3 Durability )
Bullets
Aerodynamic ( +5 Hit, -5 Critical )
Piercing ( +1 Power, -5 Critical )
HellHound ( +5 Critical, -5 Hit, Fire Damage Type )
Scatter ( +10 hit, -2 Power )
Silver ( +3 dmg vs Kaelnasians/Beast Race, -5 hit )