watch 01:36
We're Getting Mutants in the MCU - The Loop
Do you like this video?
Play Sound
A greased bolt makes for a better handling and quicker reloading in bolt-action rifles.
Insurgency: Sandstorm
"The greased bolt upgrade allows you to bolt your rifle faster."
— In-game description
The Greased Bolt is a chamber attachment featured in Insurgency: Sandstorm.
It reduces the time it takes to work the bolt of a bolt-action rifle between shots. The greased bolt upgrade first appeared in New World Interactive's other game, Day of Infamy.