The Rapid Fire barrel is an attachment type new to Call of Duty: Black Ops Cold War available for all Tactical Rifles and for some Sniper Rifles. It simply increases fire rate or decreases the delay between bursts.
|Type 63||16.4"||Weapon Level 4||+ 8% Rate of Fire|
|M16||16.3"||Weapon Level 4||+ 7% Rate of Fire|
|AUG||18"||Weapon Level 4||+ 8% Rate of Fire|
|DMR 14||17"||Weapon Level 4||+ 9% Rate of Fire|
|CARV.2||19.4"||Weapon Level 4||+ 8% Rate of Fire|
|LW3 - Tundra||25.8"||Weapon Level 21||+ 11% Rate of Fire|
|M82||20.6"||Weapon Level 21||+ 13% Rate of Fire|
|ZRG 20mm||39.3"||Weapon Level 21||+ 15% Rate of Fire|
|Swiss K31||20.6"||Weapon Level 21||+ 15% Rate of Fire|
Call of Duty: Mobile
The Rapid Fire Barrel is featured as attachments for the Peacekeeper MK2 and the Hades. Unlike its Cold War counterpart, it increases damage along with fire-rate, at the cost of range.
Call of Duty: Vanguard
The Rapid Fire attachment returns in Call of Duty: Vanguard.