Police have revealed they seized 300 knives from a single property in one of a series of raids aimed at removing weapons from the streets.
The blades were found at a house in Gainsborough, Lincolnshire, in October.
A 43-year-old man was arrested on suspicion of manufacturing and possessing offensive weapons and has been released on bail.
The seizure was among a number of raids that have led to the confiscation of 450 weapons in Gainsborough and Sudbrooke in the last three months.
In the latest operation, at a property on Wheeldon Street, Gainsborough, on 21 December, 50 weapons were seized, including flick knives, air weapons, a throwing knife and knuckle dusters.
A 43-year-old man was arrested on suspicion of possession of offensive weapons in a private place and released on conditional bail.
Officers also recovered around 100 air weapons from a property in Sudbrooke which were alleged to have been sold illegally online.
A 45-year-old man was arrested on suspicion of acting as a firearms dealer without a licence and for trading in air weapons other than face-to-face. He was released on bail while enquiries continue.
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