Demetrio Daga, a 44-year-old Albany resident and father with no prior criminal record, is facing up to 40 years in a New York state penitentiary following his conviction on 15 weapon-related felonies. The charges stem entirely from his possession and home assembly of unserialized firearms and 3D-printed components. Defense counsel and civil rights advocates argue Daga was singled out as a political test run for regional enforcement of the state'…