Four men from Sydney's west are expected to be charged on Thursday with the murder of Brendan Vollmost, 23, who disappeared after CCTV footage showed him being chased into his yard and then abducted by a group of men.

Detectives and Riot Squad officers arrested three of the men - aged 33, 25 and 25 - in homes at Lalor Park and Quakers Hill about 6am on Thursday.

A fourth man, aged 25, was arrested when a car was stopped in the Hawkesbury area. The men are thought to be linked to the Blood Brothers gang.