/ Days to Lindenholzhausen

Weapon Mods

Bipod - Increases Aimed Accuracy.
Barrel Extender - Increases damage, range & aimed accuracy but makes the weapon more unwieldy when fired from the hip.
Flash Suppressor - A flash suppressor reduces the muzzle flash making it easier for you to see and harder to be seen.
Foregrip - Improves handling and aiming accuracy.
Magazine Extender - Increases magazine capacity.
Feel the heat - Blank description. I believe its basically incendiary rounds for your gun.
Liquid Nitrogen - Blank description. I believe this one freezes enemies from time to time.
NI-CD battery - Blank description. I havent got a clue maybe toxic damage over time?
Blessed Metal - Blank description. Possibly does more damaged to certain zombies?
Rad Remover - Blank description. Possibly removes radiation looking at the name.
The Hunter - Blank description. Possibly does more damage to animals with it on your gun.
Sawed off barrel - Sawn off barrel for the shotgun. Its not a one way trip for the time being.
Muzzle Brake - Diverts the propellant gases to reduce recoil.
Polymer String - Arrows and bolts fly quicker and further with this modification.
Reflex Sight - Minor visual magnification but designed for fast target acquisition. Improves weapon handling.
Retracting Stock - Improves weapon handling while moving or firing from the hip because the weapon becomes more manageable in close quarters.
Rod and spring replacement - Increases the rate of fire on self-loading weapons and increases recoil.
2,4,8X Scope - Increases visual magnification when aiming.
Shotgun Choke - Modifies the spread to a horizontal pattern instead of the normal round one.
Silencer - A sound suppresser greatly reduces the firing sound but reduces maximum range and damage.
Shotgun Duckbill - Tightens the shotguns spread.
Cripple em - Blank description. Sounds like it'll do more limb damage.
Laser Sight - Helps with aiming quickly and increases accuracy when firing from the hip. Press F to activate.
Trigger Group: Burst - Modified the trigger group to fire 3 round bursts.
Trigger Group: Full Auto - Modified the trigger group to fire full auto only.
Trigger Group: Semi - Modified the trigger group to fire semi auto only.
Weapon Flashlight - Installs into any firearm. Press F to activate.
Flammable Oil - Blank description. Probably works with "feel the heat" at setting zeds on fire.

Melee Mods

Tempered Blade - This tempered blade increases damage and durability for blades.
Serrated Blade - This serrated blade adds a greater chance to inflict bleeding damage.
Weighted Head - Hammer Modification. Adds a chance to sun and slow victims.
Structural Brace - This brace increases damage and durability for hammers.
Ergonomic Grip - Decreases stamina usage by 20%.
Fortifying Grip - When health is below 50% gain 1 hit point every 5 seconds.
Barbed Wire Mod - 20% chance to cause bleeding damage, 40% with power attacks.
Metal Spikes Mod - Each successive hit lowers enemies armor rating by 20%.
Club Burning Shaft - Melee item can double as a light source and set enemies on fire.

Armor Mods

Bandolier - Reload 30% faster. Installs into any chest or leg armor.
You're Fired - Blank description. Either it causes fire resistance or anyone who attacks you to possibly catch fire.
Radiation Ready - Blank description. Seems to relate to resisting radiation zones.
Insulated Liner - Install this into your armor to give you insulation from the cold by 5 points.
Cooling Mesh - Adds resistence against the hot weather by 5 points.
Improved Fittings - Decreases movement and stamina penalties from armor.
Customized Fittings - Greatly decreases movement and stamina penalties from armor.
Reinforced Padding - Improve your armor rating by 1 point. Can only be installed in light armor.
Plastic plating - Improve your armor rating by 2 points. Can only be installed in light armor.
Military Plating - Improve your armor rating by 3 points. Can only be installed in light armor.
Scrap Plating - Improve your armor rating by 2 points. Can only be installed in light armor.
Iron Plating - Improve your armor rating by 3 points. Can only be installed in heavy armor.
Steel Plating - Improve your armor rating by 4 points. Can only be installed in heavy armor.
Storage Pocket - Decrease encumberance penalty by 1. Offers 19 carrying capacity.
Double Storage Pocket - Decrease encumberance penalty by 2. Offers 20 carrying capacity.
Triple Storage Pocket - Decrease encumberance penalty by 3. Offers 21 carrying capacity.
Spiked Knuckles - Increase Unarmed Damage. Can only be installed into armored gloves.
Advanced Muffled Connectors - Greatly reduced sound from armor.
Impact Bracing - Reduces fall damage.
Water Purifier - Purifies any water consumed. Can be installed onto any helmet.
Jump Jets - These look safe...ish but cumbersone to run with while they are activated. Enable a large jump boost whilst installed on chest armor.
Helmet Light - Installs onto a helmet. Press F to activate.

Misc Items

Red Dye - Adding a dye applied a tint to the entire held or worn item. Will take up a mod slot but does offer the normal damage bonus.
Green Dye - Adding a dye applied a tint to the entire held or worn item. Will take up a mod slot but does offer the normal damage bonus.
Black Dye - Adding a dye applied a tint to the entire held or worn item. Will take up a mod slot but does offer the normal damage bonus.
Blue Dye - Adding a dye applied a tint to the entire held or worn item. Will take up a mod slot but does offer the normal damage bonus.
Brown Dye - Adding a dye applied a tint to the entire held or worn item. Will take up a mod slot but does offer the normal damage bonus.