Here's a brief rundown on federal law concerning the kit in question (and any foreign kits):
Originally Posted by livewire_48529
As a receiverless kit it is not considered to be a firearm and as a result isn't subject to any federal firearm laws. These types of kits are considered to be "demilitarized". Assembling it with a receiver makes it an imported assault weapon and as a result it's subject to 922(r). If the barrel length is 16+ " then it's a simple matter of replacing some of the foreign parts with U.S. made parts. No more than 10 of the parts (including the mag parts) can be imported. The rest of it has to be domestic.
If the barrel length is less than 16" (and the gun has a stock) then things get tricky. In addition to 922(r) compliance shown above you must also register your weapon with the ATF as a short-barrelled rifle (SBR). This consists of filling out ATF form 1, getting approval from your local police chief, and paying a $200 tax on it. Then you wait several months for approval. This has to happen before you assemble your SBR.
The AMD-65 has a vertical foregrip and as a result can never be classified as a pistol under federal law (pistols are defined as being designed to be used by one hand. The foregrip implies that two hands are to be used).
(Insert random tough-guy quote here)
"See my gun?? Aren't you impressed?" - Anonymous sheepdog
The hardware is the same, but the software is vastly different.