Problem with gear positioning in players, hands who can help?

Hello So I have this gun in my game but the character holds it weirdly. I want to change how he's holding it. Heres the script:

local Tool = script.Parent
local Handle = Tool:WaitForChild("Handle")
local market = game:GetService("MarketplaceService")
local turnRate = 36
local mouse
local idleAnim
local humanoid
local player

while not player do
    if script.Parent.Parent:IsA("Model") then
        player = game.Players:GetPlayerFromCharacter(script.Parent.Parent)
    elseif script.Parent.Parent:IsA("Backpack") then
        player = script.Parent.Parent.Parent 
    end
    wait()
end

function RayIgnoreCheck(hit, pos)
    if hit and (hit.Transparency > 0 or hit.Name == "Bullet" or hit.Name == "Handle" or hit:IsDescendantOf(char)) then
        return true
    end
    return false
end

function RayCast(startPos, vec, rayLength)
    local hitObject, hitPos = game.Workspace:FindPartOnRay(Ray.new(startPos + (vec * .01), vec * rayLength), Handle)
    if hitObject and hitPos then
        local distance = rayLength - (hitPos - startPos).magnitude
        if RayIgnoreCheck(hitObject, hitPos) and distance > 0 then
            return RayCast(hitPos, vec, distance)
        end
    end
    return hitObject, hitPos
end

local function CreateBullet(bulletPos)
    local bullet = Instance.new("Part")
    bullet.CanCollide = false
    bullet.Anchored = true
    bullet.Name = "Bullet"
    bullet.Transparency = 1
    bullet.Parent = workspace
    bullet.CFrame = CFrame.new(bulletPos)
    game:GetService("Debris"):AddItem(bullet, 2.5)
    local g = script.Bullet:clone()
    g.Parent = bullet
    g.Img.Script.Disabled = false
    game:GetService("Debris"):AddItem(Instance.new("PointLight",bullet),0.2)
    return bullet
end

function getGrip()
    if char then
        if char:findFirstChild("RightHand") then
            if char["RightHand"]:findFirstChild("RightHandGrip") then
                return char["RightHand"].RightGrip
            end
        end
    end
end

function ReloadAnim(spinRate)
    delay(0.1,function ()
        local grip = getGrip()
        if grip then
            local originalGrip = grip.C0
            for i = 1,spinRate do 
                grip.C0 = grip.C0 * CFrame.fromEulerAnglesXYZ(math.pi/(spinRate/4),0,0)
                wait()
            end
            grip.C0 = originalGrip
        end
    end)
    RELOAD_ANIM = humanoid:LoadAnimation(script.Parent.Reload)
    RELOAD_ANIM:Play(0.1,1,spinRate < 36 and 3 or 2)
    Handle.Reload:Play()
end

function Shoot(player,target)
    if not Tool.Enabled then return end
    if not humanoid then return end
    Tool.Enabled = false
    Handle.FireSound:Play()
    humanoid:LoadAnimation(script.Parent.FireAni):Play()
    local hitObject, bulletPos = RayCast(Handle.Position,CFrame.Angles((.5-math.random())*4*.05,(.5-math.random())*3*.05,(.5-math.random())*4*.05)*((target - Handle.Position).unit), 400)
    if hitObject then
        CreateBullet(bulletPos)
        if hitObject.Parent then
            local hitHumanoid = hitObject.Parent:findFirstChild("Humanoid")
            if hitHumanoid and game.Players:GetPlayerFromCharacter(hitHumanoid.Parent) ~= player then
                hitHumanoid.Health = 0
            end
        end     
    end
    wait(1)
    ReloadAnim(turnRate)
    wait(turnRate/12)
    Tool.Enabled = true
end

local fireInput = script.Parent:WaitForChild("FireWeapon")
fireInput.OnServerEvent:connect(Shoot)

function OnEquipped(m)
    char = script.Parent.Parent
    humanoid = char:WaitForChild("Humanoid")
    mouse = m
end

function OnUnequipped()
    mouse = nil
end

Tool.Equipped:connect(OnEquipped)
Tool.Unequipped:connect(OnUnequipped)

What part should I change?