The purpose of this page is to explain the legal grey areas of the current gun laws. It is the responsibility of the individual assembling a firearm to comply with all BATF regulations and local laws.  It is ILLEGAL for a private citizen to assemble or modify any firearm to fire in full automatic mode. While it is legal to assemble a kit gun from an assault gun that has been properly de-milled per BATF regs, section 922r must be complied with. Most common project guns are the AR-15, UZI, AK47, AMD, Galil, RPK, CETME, G3, and FN FAL.

Typically, the rifles were constructed from parts removed from select fire rifles and rebuilt on new semiautomatic receivers.  Generally these "clones" were well made and a great deal of fun to shoot.  However, after the infamous "assault weapon" ban of 1994, the various clones suffered a dip in popularity.  Overnight, features unrelated to the rifle's operating mechanism were proscribed.  Muzzle devices, bayonet lugs, and separate pistol grips could no longer be fitted to the imported rifles.  Collectors, shooters, and military enthusiasts were disaffected by the neutered thumbhole stocked versions.  By and large the "legislative compromise" clones were uncomfortable to hold, unattractive, and a depressing reminder of the erosion of firearm rights in the US.  Despite the legal hurdles, there was a continuing strong interest in all variants in the original configuration, evidenced by the brisk trade in "pre-ban" guns.
       The ban operates on two axis:  It both prohibits the importation of certain named firearms, as well as the assembly of similarly featured guns using imported parts, i.e. the conversion of a "post-ban" gun to one with "pre-ban" features.  Specifically, a semiautomatic rifle of a type prohibited from importation, may not be legally assembled if it uses more than ten imported parts of a list of twenty enumerated in Title 27, Code of Federal Regulations, Section 178.39 (the regulatory amplification of Title 18 US Code Sections 922r and 922(d)(3)). 
This list of imported parts includes:

The receiver of a firearm is the piece that has serial number stamped on it and has the other components ie: (barrel, trigger assembly, and stock) mounted to it. This item when completed may only be transferred between FFL holders or on a form 4473 to a customer. If a tube or receiver is only 80% complete or less it may be purchased and transferred to any one. If you intend to complete a receiver blank or tube to assemble a firearm you must first file proper paperwork with the BATF. If this is not your cup of tea then purchase one of the fine completed receivers available on the market. Only a specially licensed firearms manufacture may build a machine gun from a blank or modify a semi-auto receiver to full auto!

These fixtures are attached to the receiver to enable exact placement of the proper sized holes. This will convert the receiver to accept select/FA fire parts. While it is legal for any one to posses these fixtures, they my only be used by licensed manufactures/ Gov./ Law enforcement departments to modify semi-auto receivers per BATF regulations.
Only a specially licensed firearms manufacture may build a machine gun from a blank or modify a semi-auto receiver to full auto!
 

If you collect military rifles or curio and relic firearms this is the license for you!
This license will allow the holder to purchase firearms on the C+R List. This means you can order from gun dealers in shotgun news or your local gun store that handles C+R firearms. You may not purchase modern firearms or engage in gun sales! This does not make you a gun dealer! You may trade and sell with other C+R license holders freely interstate. There are several machine guns and destructive devices on the C+R list. You still must pay the license fee for any class III firearm.