The Silencer Elite is a version of the Silencer in Blacklight: Tango Down.
Overview
The Elite Silencer is a bigger version of the original Silencer, it features the same statistics as the one it is based off of, and historically it suppressed sound and flashes the same way.
It is unconfirmed whether or not there was any changes to the statistics but it is speculated that it lowered either the accuracy or the bullet speed upon use.