How can I make the arms move with the gun?

Help and Feedback Scripting Support
#1

  1. What do you want to achieve?
    For the arm to move up and down with the gun and head.

  2. What is the issue?
    The arm doesn’t move with it.

  3. What solutions have you tried so far?
    I tried changing the M6Ds connected with arms using other CFrame values however I can’t find out how to.

			local base3 = CFrame.new(0, 1, 0, -1, 0, 0, 0, 0, 1, 0, 1, -0)
			--script.Parent.BodyAttach.CFrame = CFrame.new(script.Parent.BodyAttach.Position, Raycast(Mouse.X, Mouse.Y))
			local mouseHit = clientscript.GetMousePos:InvokeClient(player, "Hit").p
			local AimLocation = Vector3.new(mouseHit.X, script.Parent.Parent.HumanoidRootPart.Position.Y, mouseHit.Z)
			--script.Parent.Parent.HumanoidRootPart.CFrame = CFrame.new(script.Parent.Parent.HumanoidRootPart.Position, AimLocation)
			local headPos = character:WaitForChild("Head").Position
			local subVarAdjust = -0.5 * (mouseHit - headPos).Unit.Y
			local subVarAdjust2 = (0.5 + subVarAdjust) ^ 0.5 * 0.707
			local subVarAdjust3 = (0.5 - subVarAdjust) ^ 0.5 * 0.707
			local DifferenceCFrame = HumRP.CFrame:ToObjectSpace(Torso.CFrame).Position
			local HeadTor = Torso.CFrame:Inverse() * HumRP.CFrame * (CFrame.new(0,1,0) + DifferenceCFrame) * CFrame.new(0, 0, 0, subVarAdjust3 - subVarAdjust2, 0, 0, subVarAdjust3 + subVarAdjust2) * (CFrame.new(0,1,0) + DifferenceCFrame):Inverse() * RootJoint.C0 * RootJoint.Transform * RootJoint.C1:Inverse()
			local mainTor = Torso.CFrame:Inverse() * HumRP.CFrame * (CFrame.new(0,1.5,0) + DifferenceCFrame) * CFrame.new(0, 0, 0, subVarAdjust3 - subVarAdjust2, 0, 0, subVarAdjust3 + subVarAdjust2) * (CFrame.new(0,1.5,0) + DifferenceCFrame):Inverse() * RootJoint.C0 * RootJoint.Transform * RootJoint.C1:Inverse()
			Neck.C0 = HeadTor * base3
			local BodyAttach6D = character.HumanoidRootPart.ToolAttachment
			
			BodyAttach6D.C0 = mainTor