Armed officers carried out a warrant in Ellindon, Bretton, at about 4pm on Monday afternoon where they discovered the weapon, along with class A drugs.
Two men aged 20 and 58 were arrested on suspicion of possession of a firearm, along with a 49-year-old woman and a 15-year-old boy.
The 20-year-old man was also arrested on suspicion of possession with intent to supply class A drugs.
Police retrieved a sawn-off shot gun in the operation at Ellindon in Peterborough.
Photo: Midlands
Police made four arrests after raiding a property in Ellindon, Bretton.
Photo: Midlands
Police officers at Ellindon, North Bretton on Monday afternoon (February 22).
Photo: Midlands
Police officers in the process of carrying out the investigation at Ellindon, North Bretton.
Photo: Midlands
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