According to the report, the standoff lasted for more than six hours before Muniz-Torres surrendered to police.
Muniz-Torres was arrested on charges of child neglect and aggravated assault without the intent to kill.
Officers said she initially wouldn't let her son come out of the home, but eventually let him go.
She also claimed that she wouldn't allow her son out of the apartment because she feared that she would never see him again, police said.
Detectives said the woman admitted to pointing the gun at her boyfriend because she was having suicidal thoughts.