OK say its legal with the feds But what about your states law interpretation on it ? I know there was a thread about is shotgun pistol thing on Pa firearms owners site and there are some conflicting wording of the Law at the state level . So you may want to check your state statutes before toting one of these around . Personally I cant really understand why one would take a chance when its only marginally shorter than a regular 500 with 18" barrel with regular legal pistol grip is that 3-4 " reduction really gonna make it that much better in any way . Even if completely legal Id personally never buy one or put a PG on any shotgun .