These instructions are for building an AK pistol with 9-3/4″ barrel from a Romanian “G” parts kit, a K-Var Bulgarian (or US copy) 7.62×39 Krinkov Gas piston, and a NoDak Spud NDS-3 AK receiver. Other countries of origin or other calibers have different size and shape barrel components. These measurements are exclusively for the for the Romanian 7.62×39 with the Bulgarian Krink 7.62 piston. All dimensions are based off the gas piston length.
It is a violation of the NFA to manufacture a handgun with a front pistol grip without paying a tax. The NFA classifies such weapons as “Any Other Weapon” or AOW. This category covers firearms that are not machineguns, destructive devices, short-barreled rifles, or short-barreled shotguns. Thus “Any other Weapon. The Short Barreled Rifle (SBR) manufacturing tax for an unlicensed home builder is $200. Some states do not permit SBRs.
While the NFA restricts the minimum length of a rifle barrel to 16″, there is no maximum length for a pistol barrel. Therefore we can manufacture an AK style firearm with a barrel shorter than 16″ so long as it does not have a shoulder stock (SBR) or front pistol grip (AOW).
You must use a virgin receiver or a receiver that was previously a pistol. As the manufacturer – you determine whether it will be a rifle or a pistol. Once manufactured as a rifle, a receiver may not be disassembled and rebuilt as a pistol (but a pistol can be converted to a rifle).
An individual may manufacture legal firearms for personal use. Manufacture of firearms for purpose of resale requires a Type 7 Federal Firearms License.
I have covered the federal laws related to the manufacture of AK pistols. The 1994-2004 Assault Weapons Ban restricted the manufacture of pistols over a certain weight. Some states adopted the federal ban, but kept the laws after the federal ban expired in 2004. Make sure there are no state laws prohibiting your manufacture of an AK Pistol.