Now I have the Stake Out back , which HAS the HG suffix after the serial number which shows it was manufactured as an AOW handgun. I found the original grip and the black wood foreend still has the nylon web strap and swivels . Now if I put a 13.5" original "Stake out" barrel on it I would have to fill out the AOW form , fingerprint card and $5 check to ATF. Do they take e file for that and is it real quick ? Do I still have to bring it to a Class 3 dealer and pay their fee ? The second question is : I just won a Ithaca FACTORY 24" 20 ga. Model 87 Deer Slayer FULLY RIFLED barrel for it very reasonably . If I was to cut back that FULLY rifled barrel to 13.5" (and remount the Raybar front sight) would that make the gun exempt from the AOW law as it was manufactured as a Hand Gun AND as I read the law IF the barrel is rifled then it is exempt even under 26" overall . I would especially appreciate Dogtown Tom to give me his opinion , but I want any other informed source . Thank you . Otherwise I'll just keep an 18" or longer barrel on it to keep overall length to 26"+ which is legal I am sure. www.atf.gov. ATF. Retrieved 2011-03-29. For the purposes of the National Firearms Act, the term "Any Other Weapon" means: * Any weapon or device capable of being concealed on the person from which a shot can be discharged through the energy of an explosive; * A pistol or revolver having a barrel with a smooth bore designed or redesigned to fire a fixed shotgun shell; * Weapons with combination shotgun and rifle barrels 12 inches or more, less than 18 inches in length, from which only a single discharge can be made from either barrel without manual reloading; and * Any such weapon which may be readily restored to fire. !!!! Such term shall NOT include a pistol or a revolver having a rifled bore !!!! , or rifled bores, or weapons designed, made, or intended to be fired from the shoulder and not capable of firing fixed ammunition.