The phrase "a faction of it" is correct and usable in written English.
You can use it when referring to a specific subgroup or portion of a larger entity or group.
Example: "While the organization has many members, a faction of it is dedicated to environmental issues."
Alternatives: "a segment of it" or "a portion of it".
When Leamon R. Hunt, the Oklahoma born director-general of the multinational force that monitors the peace in the Sinai Peninsula, was gunned down in this fashion in Rome recently(the"credit"for the despicable act claimed by something called the Fighting Communist Party, a faction of the Red Brigades), it almost seemed to be bloody business as usual.
What is the 'Buffett rule' and why does a faction of the Labor party want it?
"Such an initiative could emerge within a faction of an existing organisation or it could occur as a result of a dynamic of competition [for outside funds and recruits] between grouplets in an area with many actors.
As Erdogan sees it, a faction of the military, whom he deemed Gülen loyalists, tried to seize power using tanks and helicopters.
A military coup attempt was launched Friday night in Turkey, with a faction of the armed forces claiming it had "fully seized control" of the country.
There is a faction of Americans who believe that it is their civic duty to vote, and there is another faction who believe it is their civic duty to reject the pseudo-democratic voting ritual, and these two groups routinely engage in mutual mocking of one another.
While the Taliban publicly disavowed the new group, Afghan intelligence officials depicted it as a faction of the Taliban that is "behind the current campaign of psychological and terror attacks," as one official put it.
A large majority of House Republicans opposed it, but a faction of them did not.
It appears a faction of the military attempted to oust Turkish strongman Recep Tayyip Erdogan, to restore the constitution, as the rebel leaders claimed.
