Right side ball auto launch assembly. Also known as a kicker bracket assembly. Used in many Williams/Bally pinball machines. 

Game List:

Attack From Mars

Bram Stoker's Dracula

Dirty Harry

Demolition Man

Flintstones

Fish Tales

Indy 500

Indiana Jones (WMS)

Judge Dredd

Johnny Mnemonic

No Fear

Popeye

Shadow

Terminator 2

Williams/Bally reference #A-14525.