- "Suppressor crafted from an oil filter. Silences weapon, but blocks visibility when used with iron sights."
- — Description
In multiplayer, it is available to all handguns except the .357 revolver. However, in the campaign mission "Embedded", the .357 can actually be fitted with an Oil Can Suppressor. Various other weapons available in this mission can also be equipped with the attachment, even the ones that are not handguns.
Call of Duty: Mobile
The Oil Can suppressor is available exclusively on the Man-O-War as the RTC Huge Suppressor. One can consider it as a sort of upgrade to the Monolithic Suppressor, as it increases range by 40% rather than 20%, suppresses the weapon, and even increases recoil control. However, it has an ADS time increase of 22%, compared to the Monolithic Suppressor's 12%.