Hellmet-style gun system

[KML100 (KML)]

I have made a Hellmet-style gun system, but an uncalled-for roadblock has emerged. I have prepared a clip:

Medal clip:

Hellmet Roblox (Inspiration for the gun system): HELLMET [OPEN ALPHA] - Roblox

What is the issue? Well, when I walk backward, the hands seem to glitch out (Teleporting everywhere), and I have no clue what is going on. I have pondered the question for days, but I have not found a solution.

Here are the functions that I use to align the arms.

local function setup_arms()
	
	local torso = character:FindFirstChild("Torso")
	local right_shoulder = torso:FindFirstChild("Right Shoulder")
	local left_shoulder = torso:FindFirstChild("Left Shoulder")

	-- Store original C0 values for proper offsets
	character:SetAttribute("RightShoulderC0", right_shoulder.C0)
	character:SetAttribute("LeftShoulderC0", left_shoulder.C0)
end

local function point_arms()
	local torso = character:FindFirstChild("Torso")
	local right_shoulder = torso:FindFirstChild("Right Shoulder")
	local left_shoulder = torso:FindFirstChild("Left Shoulder")

	local rightC0Original = character:GetAttribute("RightShoulderC0")
	local leftC0Original = character:GetAttribute("LeftShoulderC0")

	-- Target positions in world space
	local rightTargetWorld = current_gun.right_hand.Position
	local leftTargetWorld = current_gun.left_hand.Position

	-- Midway positions 
	local rightMidway = rightC0Original.Position:Lerp(torso.CFrame:PointToObjectSpace(rightTargetWorld), 0.5)
	local leftMidway = leftC0Original.Position:Lerp(torso.CFrame:PointToObjectSpace(leftTargetWorld), 0.5)

	-- Compute rotation to point at the target
	local rightRotation = CFrame.lookAt(torso.CFrame:PointToWorldSpace(rightMidway), rightTargetWorld)
	local leftRotation = CFrame.lookAt(torso.CFrame:PointToWorldSpace(leftMidway), leftTargetWorld)

	-- Convert to torso's object space
	rightRotation = torso.CFrame:ToObjectSpace(rightRotation)
	leftRotation = torso.CFrame:ToObjectSpace(leftRotation)

	-- Apply 90-degree correction around the X-axis
	local rotationCorrection = CFrame.Angles(math.rad(90), 0, 0)

	-- Apply new position and rotation
	right_shoulder.C0 = CFrame.new(rightMidway) * rightRotation.Rotation * rotationCorrection
	left_shoulder.C0 = CFrame.new(leftMidway) * leftRotation.Rotation * rotationCorrection
end

[BIULDERBRO (Beni)]

I don’t know if it’s just me but your Medal clip is not loading.

[KML100 (KML)]

The issue should be fixed now.

[BIULDERBRO (Beni)]

From what I’m seeing in the video is a collision fighting issue with the arms and gun while moving. (if that’s not the case) Could be your update doing a late update after the gun moves.

[KML100 (KML)]

Lets say that it is a collision fighting issue, what steps can I take to fix the sitsuation? But I highly doubt that it would be a collision fighting issue. Ill look into the late update thing. And also the glitching only happens when I walk backwards, everything is fine when I move side to side or forwards.

[KML100 (KML)]

I fixed it. The problem was that the characters “AutoRotate” property was set to True.