Rapid Fire Open Source

local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local localPlayer = Players.LocalPlayer

if getnamecallmethod then
    local function setupRapidFire(tool)
        if tool and tool:FindFirstChild("GunScript") then
            for _, v in ipairs(getconnections(tool.Activated)) do
                local funcinfo = debug.getinfo(v.Function)
                for i = 1, funcinfo.nups do
                    local c, n = debug.getupvalue(v.Function, i)
                    if type(c) == "number" then
                        debug.setupvalue(v.Function, i, 1e-20)
                    end
                end
            end
        end
    end

    local function onCharacterAdded(character)
        RunService.Heartbeat:Connect(function()
            local tool = character:FindFirstChildOfClass("Tool")
            setupRapidFire(tool)
        end)
    end

    if localPlayer.Character then
        onCharacterAdded(localPlayer.Character)
    end

    localPlayer.CharacterAdded:Connect(onCharacterAdded)
end