Of course! For the last 20 years, I have been doing so! I got out of the Air Force, and was going to get one rifle and one shotgun. The rifle was the M1-A, which I purchased, and the shotgun was going to be the Daewoo made USAS-12, a removable magazine made shotgun, similiar in appearance and operation, to an AR-15. Thing was, the USAS 12, never made it to the market, as the ATF decided it wasn't to be imported. Not much later, it was "our friend", the NRA life member George HW Bush, who ended the importation of several brands of semiautomatic rifles under dubious "standards" of bayonet lugs, pistol grips ect. I still remember the "mandate" to remove bayonets from unsold SKS's. The rest is history! I looked into getting a Striker, a South African made shotgun. It had a drum, but it wasn't easily reloaded, soon it was also banned from import. Then they imported the parts, and assembled them into a legal "Street Sweeper', BUT NOT LEGAL FOR LONG, AS IT WAS "RECLASSIFIED", and was soon off the market, as was the SPAS 12, and most tactical shotguns. I had had enough. I went out and bought a SKS Sporter, the SKS that takes AK mags. I soon had five SKS's and started buying the post ban stuff when it came out. I also made it a point to buy the imported military surplus since it had proven easier for a hostile president to use import restrictions to keep them out of the country. I finally got a chance to get a Saiga 12, my magazine fed shotgun, this year after 2 decades of government interference. I set goals, and have nearly ALL of what I set out to get, with the exception of a 50BMG rifle. I woud like nothing better than to get one, it's just not practical for me, and I bought more practical guns instead. I also suspect the UN is having some success in keeping surplus ammunition from being exported to the US, so lately, getting sufficient supplies of appropriate ammuntion has been a priority. I was alarmed, last month when suddenly, all the calibers I needed were suddenly available. Fortunately, it seems the supply is holding a bit, so the ammunition won't go away suddenly, while I am still trying to but it.
I'm not paranoid, the government and antigun organizations are trying to keep guns off the market.