SIOUX CITY — A Fort Dodge man has been sentenced to federal prison after pleading guilty to drug and gun charges.

Carl D. Lambert Jr., 47, has been sentenced to 20 years in prison on one count of conspiracy to distribute methamphetamine, one count of distribution of methamphetamine, and one count of possession of a firearm in furtherance of drug trafficking.

Lambert was sentenced on Wednesday.

According to the United States attorney’s office, Northern District of Iowa, Lambert admitted that he and others distributed more than 3.5 kilograms of meth in the Fort Dodge area.

This happened between January and December 2017.

On Nov. 4, 2017, the U.S. attorney’s office said police found Lambert in possession of a .22-caliber pistol in his waistband and more than 46 grams of meth.

Lambert admitted that he meant to distribute the meth to others and that he carried the pistol for protection, according to the U.S. attorney’s office.

After his 20 years in prison are completed, Lambert must serve a five-year term of supervised release.

He is in the custody of the United States Marshals Service until he can be transported to a federal prison.

The case was investigated by the Fort Dodge Police Department, Webster County Sheriff’s Department, Iowa Division of Narcotics Enforcement and the Iowa Division of Criminal Investigations’ laboratory.