The two weapons, which had been deactivated, were among five automatic guns handed in to the Metropolitan Police along with 31 shotguns, 11 pistols, 10 handguns, nine revolvers and six rifles.
Some 3,859 rounds of ammunition were also handed in, as well as 48 air weapons, to the Met.
The national gun surrender drive was launched on November 13 and ends on Sunday.
Detective Superintendent Mike Balcombe, of the Met’s Trident and Area Crime Command, said: “We are very pleased with the public response to the first week of the gun surrender.
“Every firearm handed in to police makes the city safer as it prevents them from falling into the hands of criminals.
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“The Met’s Trident unit is committed to reducing gun crime in the capital and I would urge anyone else who is in possession of an illegal firearm to visit their local 24-hour police station during the final days of the gun surrender.”
If anyone has any information about someone who they believe is in possession of an illegal gun, they can ring police on 101 or Crimestoppers, anonymously, on 0800 555 111.