Very interesting, When I read the actual NFA handbook chapter 6 is says it right there...
CHAPTER 6. MAKING NFA FIREARMS BY NONLICENSEE
Section 6.1 Requirements for making NFA firearms. Persons not otherwise prohibited from
possessing firearms may submit an application to make an NFA firearm, other than a machinegun.93
The application process requires submission of ATF Form 1, Application to Make and Register a
Firearm, in duplicate, along with FBI FD-258, Fingerprint Card, in duplicate, and payment of the $200
making tax. Appendix C contains a copy of Form 1.
Section 6.2 Preparation of Form 1. Every person (other than a licensed manufacturer who has also
paid the required SOT to manufacture NFA weapons) must complete the Form 1.94 Two identical
copies of the application must be prepared. All entries must be made in ink. All required signatures
must be original and entered in ink. Photocopies or other facsimile or carbon copy signatures are not
acceptable. Under no circumstances will a form filled in by use of a lead pencil be accepted. All
changes made on the form must be initialed and dated by the applicant.
6.2.1 Description of firearm. If an existing firearm or firearm receiver is being used, the name and
location of the original manufacturer of the weapon should be entered in Block 4(a). If the applicant is
making a completely new firearm, the applicant’s name and location should be entered in Block 4(a).
The type of firearm being made, i.e., short barrel rifle, short barrel shotgun, any other weapon, silencer
or destructive device, is to be entered in Block 4(b). The caliber or gauge of the firearm is to be entered
in Block 4(c). If a model designation has been assigned to the firearm, that designation is to be placed in
Block 4(d). If the weapon has no model designation, enter “none” in Block 4(d). The length of the
barrel is to be entered, in inches, in Block 4(e) and the overall length of the firearm is to be entered, in
inches, in Block 4(f).
All NFA firearms must be identified by a serial number and other specified markings95. If an existing
firearm is being used in the making of the NFA weapon, and that firearm is serialized, the existing serial
number should be used (unless it duplicates a serial number already used by the maker on Form 1) and
entered in Block 4(g). If the weapon is of new manufacture, the applicant must assign a unique serial
number and enter it in Block 4(g). For example, a unique serial number could be composed of at least 4
digits preceded by the initials of the maker. NOTE: alpha characters, e.g., a name, will not be accepted
as a serial number. If a name is to be used, there must be at least one numeric character in addition to
the alpha characters.
The serial number must be engraved or stamped on the receiver of the firearm and the caliber, model,
and identification of the maker must be engraved on the barrel or frame or receiver of the weapon.96 The
marking and identification requirements for a maker are the same as for a manufacturer. Refer to
section 7.4 for a detailed discussion of the requirements.
Not sure why I never picked up on this before...Over on Arf.com nobody has ever brought it up, though most of them it seems register as a trust.
