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?