1) Center 2) Center of attention 3) Optical instrument parts 
[Transformers] Crosshairs is the name of several fictional characters of the various Transformers universes. ==Transformers: Generation 1== Crosshairs is an Autobot and transforms into a futuristic, possibly Cybertronian ATV. Meticulous, cautious, some would say overcautious—will not take a shot unless he`s sure he cannot miss... will not...
noun a center of interest; `the war on terrorism has put Saddam Hussein in the crosshairs`