Malique Challenger of Potters has pleaded guilty to unlawful possession of a firearm and ammunition and will be sentenced this Thursday.
His co-accused, Taren Weston of Yorks, walked free after the charge against him was withdrawn.
Police say the weapon, a loaded .45 Remington pistol, was found during a raid in Yorks on Saturday.
Investigators continue to urge the public to report any suspicious activity
