The man's brother was also sentenced to three years and 10 months in prison for aggravated narcotics offences and aggravated weapons offences.
The deal is said to have been made in Basel, Switzerland.
The police raid was made after a period of searches aimed at several men who have been linked to major smuggling of drugs to Sweden.
In total, nine men were charged with involvement. Four of them are based in Falkenberg. Two younger men are acquitted of suspicion of smuggling and convicted only of drug offences and minor drug offences.
A 65-year-old man is sentenced to three years in prison for, among other things, serious money laundering offences and also allegedly stored the drugs in his home. Two men from Gothenburg are sentenced to eight months in prison for serious money laundering offences.
Waited for encrypted chats
The main proceedings had to be rescheduled because it took a long time to obtain evidence from the encrypted chats Anom and Sky, which the police have decoded.