Then, around 1973, a little home business produced a tiny pistol, the SeeCamp .32acp. (The Seecamp .32 could only use SilverTip JHP ammo, worthles ballistics.) NAA immediately tried to copy it with their Guardian .32, heavy little clunker. A Swedish designer by the name of George Kellgren, who had tinkered with firearms like the Grendel brand, wanted to do something like the GLOCK. In around 1995 he contracted with a CNC machine shop in Cocoa, Florida to produce a polymer framed .32acp pistol he designed, and Kel-Tec was born. Lighter than the Seecamp or NAA, it's sales soared. None of these .32's had ballistics to even remotely produce a one-shot-stop, but with a full magazine and rapid fire could easily discourage a felon.
When, exactly the small .380's came on the market, I'm not sure. Kel-Tec just up-sized their P32, left off the slide lock, and had success with the P3AT, 1st gen. model. Seecamp made one and so did NAA. Now the market is flooded with 380's, some of them pure junk. But the pocket gun craze has made sales of all these pistols, many with polymer frames, soar.