RS.Heartbeat:Connect(function()
if Character and Character:FindFirstChild("Torso") and Activated then
local RightShoulder,= Character.Torso:WaitForChild("Right Shoulder")
local X = -(math.asin((Mouse.Origin.p - Mouse.Hit.p).unit.y))
local _, Y, Z = RightShoulder.C0:ToEulerAnglesXYZ()
RightShoulder.C0 = CFrame.new(RightShoulder.C0.Position) * CFrame.Angles(X, Y, Z)
end
end)

And when you deactivate it should be something like this:

wait(2)
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local plr = Players.LocalPlayer
local char = plr.Character
local mouse = plr:GetMouse()
mouse.TargetFilter = workspace
local armOffset = char.Torso.CFrame:Inverse() * char["Right Arm"].CFrame
local armWeld = Instance.new("Weld")
armWeld.Part0 = char.Torso
armWeld.Part1 = char["Right Arm"]
armWeld.Parent = char
local lastmou
game:GetService("RunService").Heartbeat:Connect(function()
if char and char:FindFirstChild("Torso") then
local RightShoulder = char.Torso:WaitForChild("Right Shoulder")
local X = -(math.asin((mouse.Origin.p - mouse.Hit.p).unit.y))
local _, Y, Z = RightShoulder.C0:ToEulerAnglesXYZ()
RightShoulder.C0 = CFrame.new(RightShoulder.C0.Position) * CFrame.Angles(X, Y, Z)
end
end)

dude, hold yourself together manâŚ
AnywaysâŚ
With regards to your script, your nearly there. Personally I take the approach of using angles instead of using pure cframes, this is because in your CFrame.new(point1, point2) solution you will very quickly run into issues when aiming directly up or down.

Anyways as for a solution I wonât give you any code but rather I will give you a few tips to how to get there.

A weld on an arm is offset, therefore you need to make sure to replicate that with this equation, I recommend using ToObjectSpace and ToWorldSpace.

For easier math you will want to localize the target based on the torsos CFrame.

As for the yaw and pitch of the arm, heres a great equation for that:

local yaw = math.atan2(-localizedTarget.X, -localizedTarget.Z)
local pitch = math.atan2(localizedTarget.Y, math.sqrt((localizedTarget.X ^ 2) + (localizedTarget.Z ^ 2)))

Now go learn some math!

As a side note, please donât beg, your not going to get anywhere with that.

Read up on this stuff.
When I refer to math Iâm refering to the equations which are involved with CFrame operations, terms such as Radians, Rotational Matrix and Vector should be familiar to you.

Hello,
Also I would like it to so that the arm points inversely if your mouse is in the back of your character because human arms canât move like that

Hello,
I did some math and it seems like I got it with UpVector and RightVector but for some reason setting the c0 of the armweld would make my arm float and itâs very weird because when I rotate my character and make it fall the arm just moves back and it stays there

wait(2)
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local plr = Players.LocalPlayer
local char = plr.Character
local mouse = plr:GetMouse()
mouse.TargetFilter = workspace
local armOffset = char.Torso.CFrame:Inverse() * char["Right Arm"].CFrame
local armWeld = Instance.new("Weld")
armWeld.Part0 = char.Torso
armWeld.Part1 = char["Right Arm"]
armWeld.Parent = char
local lastmou
RunService.RenderStepped:Connect(function()
lastmou = mouse.Hit.p
local e = Instance.new("Part",workspace)
e.CFrame = CFrame.new(char.Torso.Position+char.Torso.CFrame.RightVector+char.Torso.CFrame.UpVector, mouse.Hit.Position)
e.Anchored = true
e.CanCollide = false
e.Size = Vector3.new(1,1,1)
game:GetService("Debris"):AddItem(e,.05)
local cframe = CFrame.new(char.Torso.Position+char.Torso.CFrame.RightVector+char.Torso.CFrame.UpVector, mouse.Hit.Position)
armWeld.C0 = cframe * CFrame.Angles(math.pi/2, 0, 0)
end)

Hello,
No one is going to help me? Iâm sorry if you think this is spamming/bumping but if I leave this post for another month Iâm not going to receive a single droplet of help, let alone any useful ones

His velocity thing I got a better idea I used to help my friend when dealing with tweening on the rs. Basically we use whats called âparametric raysâ basically we can define a point on a ray by

p=o+(d*t)

Where the point is described as our origin of our ray (the hip socket) and d describes our ray (hipSocket - endMouseHit) multiplied by how far along the ray we wanna go. So what we could do is like calculate how long this ray is then plug it for t. From there itâs just interpolation

local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local player = Players.LocalPlayer
local char = player.Character
local mouse = player:GetMouse()
--Weld for the cframing plus motor6ds are out of my league and animations will still work like nothing happen to it
local armWeld = Instance.new("Weld")
armWeld.Part0 = char.Torso
armWeld.Part1 = char:WaitForChild("Right Arm")
armWeld.Parent = char
--pi/2 is also known as 90 deg.(just wanted to point this out lol)
local piDiv2 = -math.pi/2
RunService.Heartbeat:Connect(function()
local CFraming = CFrame.new((char.Torso.CFrame * CFrame.new(1.5, 0.5, 0)).Position, mouse.Hit.Position) * CFrame.new(0, 0, -0.5) * CFrame.Angles(piDiv2, 0, 0)
armWeld.C0 = char.Torso.CFrame:ToObjectSpace(CFraming)
end)

Ok so i found a post where someone made a R15âs player arm to face the mouse direction, so i converted it to R6 and changed some stuff about it. Now we get this.

anyways, we first get the position of where the rotation is occurring and then we give it the mouse position,

then weâll add another -0.5 offset when it has its LookVector that way it isnât centered,

after weâll turn it from world space to object space.

Now Iâll point out that thereâs way more efficient ways of doing this, but this is just a demo so it shouldnât be too bad.

If you donât want the playerâs arm to go into the playerâs character you can use the dot product and inverse it or something

Vectors can be formed from 2 points. If you know where your mouse will hit in world space and you know the length of the arm the end position is the solution to this problem

Iâm sorry about bumping this topic, but no one pointed out that the person said that the script is specifically meant for r6, yet you used r15, so it didnt work

Sorry for the late response, but there still isnât a solution for this yet.

local position = char.Torso:WaitForChild('Right Shoulder').C0.Position+Vector3.new(0,.5,0)
game:GetService("RunService").RenderStepped:Connect(function()
if equipped == true then
local RightShoulder = char.Torso:WaitForChild("Right Shoulder")
local X = -(math.asin((mouse.Origin.p - mouse.Hit.p).unit.y))
local _, Y, Z = RightShoulder.C0:ToEulerAnglesXYZ()
RightShoulder.C0 = CFrame.new(RightShoulder.C0.Position) * CFrame.Angles(X+math.pi/4, Y, Z+math.pi/4)
end
end)