The IonFire barrel extension is one of the shortest barrel extensions to date. Like the Proximity Barrel, it bears loose resemblance to a real-life flash hider. Three slots are visible on each side of the barrel but have no functional purpose. Unlike most extensions, it does not have any additional features to it, like tactical rails or iron sights. The inside of the barrel itself features rifling.
The IonFire barrel extension was made available in 2017 with the N-Strike Modulus variant of the Stryfe.
The IonFire barrel extension has been released in the following color schemes: