A licensed firearm was seized by police from the home of the former head of the Royal Marines just days before his death.
Major General Matthew Holmes was found dead at his home in Winchester, Hampshire, on 2 October.
An inquest heard that the 54-year-old died after having "concerns" about his career and his marriage.
Maj Gen Holmes, who had served in Northern Ireland, Kosovo, Iraq and Afghanistan, was Commandant General Royal Marines from 2019 until April this year.
Hampshire Police have confirmed that an armed police unit attended the family home on 22 September following a "concern for welfare" call.
"A licensed firearm was seized," a spokesperson added.
"No threats were made to any other person in relation to this incident, and no arrests were made.
"Armed police did attend, but not in an armed capacity."
More than 700 mourners, including Defence Secretary Ben Wallace and senior military leaders, attended Maj Gen Holmes's funeral at Winchester Cathedral on Wednesday.
Following Maj Gen Holmes' death, his widow released a statement paying tribute to him.
"My husband Matt was a kind, generous man," she said.
"He was courageous and had committed his life to serving in the Royal Marines; he was selfless to such an extent that this was more important than his own career progression."
A full inquest into Maj Gen Holmes's death will be held in February 2022.