Mel Gibson Selling Oksana's $2.575 Million Crash Pad

Mel Gibson's former girlfriend, Oksana Grigorieva, made good on their new custody settlement and moved out of his Sherman Oaks rental, and now he's dumping it.

Mel's selling the 4 bedroom, 3.5 bath pad for $2.575 million. The 3,468 square foot home hit the market Thursday. It's a Frank Lloyd Wright knock-off -- modern architecture with a bunch of stone features and stained glass. No pool though.

As we previously reported ... Mel agreed to give Oksana just under $30k in child support each month for their 6-year-old daughter, Lucia, IF Oksana agreed to move out of the rental.