Nottinghamshire Police seized two machetes and an imitation firearm during an operation in Sneinton on Sunday.
Officers who are part of the force’s Operation Reacher team targeting street drug dealing also arrested a 32-year-old man on suspicion of possession with intent to supply.
The man was observed by officers as he approached known drug users and they recovered an amount of cash and a mobile phone from him.
In a separate incident, officers recovered two machetes and an imitation firearm.
City South Op Reacher Sergeant Tim Register said: “We ran a successful operation in the Sneinton area on Sunday, which tackled street drug dealing.
“Officers used a range of covert and overt tactics.
“They observed a man reportedly exchanging small packages for cash. Officers were able to seize synthetic cannabinoid, commonly known as mamba or spice. The man was detained and has since been released under investigation.
“Officers searched another address in the area which led to the recovery of more mamba, plus electronic scales and dealer cards. We were also able to seize a number of weapons at a separate property.
“I’d also like to thank residents for reporting the offences in the first instance.
“We would also encourage the community to continue to talk to us and report any further crimes in the area by calling 101.”