Bad Religion Guitarist Greg Hetson Files for Divorce After Restraining Order War

The lead guitarist for legendary punk band Bad Religion has had enough, filing for divorce from his wife in the midst of a nasty restraining order war -- in which they both accuse each other of all kinds of domestic abuse, including coat hanger beatings.

TMZ broke the story ... Greg Hetson's wife Alia obtained a temporary restraining order against him last week, accusing him of violence ... even throwing her on the floor during a recent blowout argument.

Hetson shot back with his own restraining order request, including a laundry list of Alia's alleged violent acts -- like beating him with a coat hanger, and shoving an apple core into his mouth.

Now, Hetson has followed up with the coup de grace -- divorce docs -- citing irreconcilable differences.

Luckily -- or not -- Hetson and Alia were only married for 2 years and they have no minor children.

According to the docs, Hetson wants to block the court from awarding Alia spousal support.

As for Alia, a rep has released a statement denying any allegations of abuse on her part.