The answer is maybe. Pennsylvania law does prohibit some DUI offenders from possessing firearms, but, according to 18 Pa.C.S. § 6105(c)(3), only people with three or more convictions within a 5-year period fall under the prohibition. The primary restriction for gun ownership based upon driving under the influence convictions comes under Federal law at 18 U.S.C. § 922(g)(1). That law imposes a lifelong firearm prohibition for certain misdemeanor convictions. Section 922(d)(1) also prohibits some people that are under indictment, meaning a person with a pending charge, from purchasing a firearm. Both laws are invoked or becomeapplicable if the charge is a first degree misdemeanor in Pennsylvania or if the maximum sentence for the charge is more than two years.
Grading of DUI Charges in Pennsylvania
Because the Federal law restrictions on purchasing or possessing a gun for people with pending DUI charges or convictions are related to the severity of the punishment that can be imposed, it is obviously critical to know the severity of DUI charges in Pennsylvania. If a person has no "prior offenses" of DUI, then the current offense would be considered a first offense for mandatory minimum purposes, and the charge would be an ungraded misdemeanor. Such a charge has a maximum sentence of six months in jail, so no first time offender of DUI is prohibited from possessing a gun.
When it comes to a second or subsequent offense of driving under the influence, then it becomes a bit trickier. The grading or severity of the DUI charges is often based upon the blood alcohol level of the person, and there are three levels of penalties. People with a blood alcohol level above .16%, people who are charged with a drug-DUI are placed in the highest level of penalties, and all non-first time offenders in the highest range of penalties are charged with a first degree misdemeanor. That means that a conviction for a second or subsequent driving under the influence offense in the highest range of penalties does trigger the Federal firearm prohibition and thereby prevents a person from ever possessing a firearm again.
Restoration of Gun Rights
In order to avoid the 922(g)(1) prohibition, a person can seek a pardon to restore gun possession privileges. A pardon would basically set aside or invalidate the conviction. If the person was no longer officially "convicted" of the charge, then the person would no longer fall under the firearm prohibition, so the person would be permitted to possess a gun.