You should try and edit this item (only this item) trough lua script,this way you will avoid mod conflicts, here is a example of how to edit say weight of an item

it does not have to be weight specifically it can be any parameter that are listed in the items properties!

Awesome idea for a mod btw,small quality mod keep it up!

function Adjust(Name, Property, Value)
Item = ScriptManager.instance:getItem(Name)
Item:DoParam(Property.." = "..Value)
end

Adjust("Base.Pistol","Weight","0.5")