---
layout: wiki
title: Overheating
description: Weapon temperature and jamming, barrel swapping.
group: feature
parent: wiki
---
## 1. Overview
### 1.1 Weapon Jamming
Adds a probability to jam a weapon when firing. Jams can be cleared by
reloading or by using the clear jam-key.
### 1.2 Temperature simulation
Introduces weapon temperature simulation depending on weapon and bullet
mass. Hot weapons are more prone to jamming. Depending on weapon type
the accuracy and in extreme cases the muzzle velocity might be reduced
on high temperatures. Adds smoke puff and heat refraction effects to
indicate this.
### 1.3 Spare barrels
Adds the ability to changes barrels on machine guns to compensate for those
effects.
## 2. Usage
### 2.1 Clearing a jammed weapon
- To clear a jammed weapon, press SHIFT + R (ACE3 default keybind `Clear jam`).
### 2.2 Swapping barrels
- For this you need a `Spare barrel` and a compatible weapon.
- Press self interaction CTRL + left windows (ACE3 default keybind `Self Interaction Key`).
- Select `equipment`.
- Select `Swap barrel`.
### 2.3 Checking your barrel temperature
- Press self interaction CTRL + left windows.
- Select `equipment`.
- Select `Check weapon temperature`.
## 3. Dependencies
`ace_interaction`