I added the list of Kel-Tec distributors to the FAQ, but keep in mind that most distributors don't sell directly to the public. There are a few large distributor-dealers like CDNN, but most of the time, Kel-Tec sells to distributors, the distributors sell to dealers, and the dealers sell to retail customers. The list of Kel-Tec distributors can be very useful when your local gun dealer wants to find a Kel-Tec for you but doesn't know which distributors might sell Kel-Tec products. Most of the distributors don't want to talk to a guy looking to buy a PLR-16. The distributors want to sell to dealers.
PS - If not for the 1968 Gun Control Act, we could buy a PLR-16 on Kel-Tec's website and have it shipped to our home, without the inefficiencies and costs of two extra layers of distribution, and without the cost and hassle of the 4473 form.