A Washington man pleaded guilty Monday to a firearms charge as part of a year-long investigation by the Bureau of Alcohol, Tobacco, Firearms and Explosives into an alleged drug- and gun-dealing network around a Bellevue apartment complex in Ward 8.

Lonnel Boyd, 27, of Southwest, pleaded guilty to conspiracy to engage in firearms dealing without a license and faces sentencing Nov. 17 before U.S. District Judge Randolph D. Moss. Boyd faces a likely sentence under federal guidelines of six months to a year in prison, according to the U.S. attorney’s office for the District.

The investigation targeted activity around the Wingate apartment complex in Southwest Washington. According to court filings, it relied on at least three confidential sources, more than 15,000 wiretap interceptions, phone call and vehicle traces and 22 recorded drug buys.

 Boyd was arrested and indicted in July. His attorney, A. Eduardo Balarezo, said Monday that Boyd had nothing to do with the drug conspiracy, and his plea was not part of any cooperation agreement with prosecutors.

 Boyd’s co-defendant, Kenneth Miller, has pleaded not guilty to three indictments, including two firearms conspiracy counts and conspiring to distribute and possess more than 280 grams of cocaine base, as well as heroin and phencyclidine, or PCP.