Dwight Howard‘s wife Amber Howard brutally ripped into him during a recent 911 call — claiming he locked her out of their Georgia mansion … and telling the dispatcher the home is packed with weapons.

In new 911 audio — obtained by TMZ — Amber says she’s standing outside in the rain after Dwight locked the gate entrance of their 35,000-square-foot home … something she claims he frequently does when he gets “upset” following their arguments.

She also name-drops him … telling the operator her hubby is “Dwight Howard from the Lakers.”

Amber also alleges Dwight lost custody of his daughter the night before — something she also claimed on Instagram, but we have not confirmed — and says he “took it out on me.”

Due to being locked out … Amber says she walked through the woods and forced her way through the side gate in the pouring rain … adding she’s shocked neighbors “haven’t called the police on me yet.”

In the March 6 call, Amber tells the dispatcher … “I cannot keep being made to sleep in my car when my husband gets mad because he’s a multi-millionaire and he’s an NBA star.”

The operator asks Amber whether she and Dwight own any weapons in the house — and she replies, “Oh, for sure.” She then tells dispatch they have “over a thousand” on the property in “a very nice gun room.”

The call came in on March 6th — just a day before Dwight called the cops on Amber, alleging she had taken his wedding ring, jewelry and phone.