"violent parts" is a correct and usable phrase in written English.
For example, you could write, "The movie was largely entertaining but had some violent parts."
The violent parts of this drama are reasonably understated.
"He liked to see how present police officers were in the most violent parts of the city.
But nongovernmental groups have a growing presence, finding it easier to work here than in more violent parts of Afghanistan.
In Iraq's more violent parts, said a report released by the State Department last week, many of the ISF have been "rendered ineffective".
The violence and vigilante gangs from the television news are nowhere to be seen (most of the violent parts of South Africa are far from the tourist trail).
All grew up in poor, socially conservative rural communities in some of the most backward, violent parts of the country and frequently returned to their villages.
"I am from Sinaloa, a very violent part of Mexico," says Margolles through a translator.
SACHEM'S HEAD takes its name from a violent part of its history.
"We are playing in the most violent part of the formation," right tackle Kareem McKenzie said Wednesday.
There was no radar to help avoid thunderstorm centers, and we often flew into the most violent part.
By helping the Iraqi people become free, you're helping change a troubled and violent part of the world.
