AMT made the Baby Auto Mag in 22LR well after the AutoMag Corp and TDE were long gone. Harry Sanford, who was the man behind the AutoMag from the start, was running AMT at the time Sudden Impact came out, circa 1984. At that time, Harry spooled up 1,000 piece run of look-a-like 44 Auto mag, dubbed the "Baby AutoMag." They each came in a hardwood case marked "Baby Auto Mag, 1 of 1,000.
They made about 10,000 of the full size AutoMags, so the "baby" is certainly more scarce. But the real trophies in the collection are the exotic barrels, most notably the 41 calibers and the .30 cal. On the "books" the 41 JMP which was later changed to the 41 AMP is quite rare, and they were only made in 6.5" and 10.5" configurations. I happen to have one that is 8.5" however. This was most likely a factory mistake on a 10.5" barrel, so it was cut down to 8.5" since the sight assembly had to be cut off and reinstalled. The 30 Lomont barrel is basically an aftermarket affair and only a handfull of those were ever made. The AutoMag is one of my all-time favorite handguns and it accompanies me on every hog hunt. If you check the Tromix website at www.tromix.com you will see me in a pic with a wild boar shot with a Tromix Sledgehammer AR-15, but you will note the handle of the fabulous AutoMag in my shoulder holster.
AMT/Galena, headed by David Small, bought up the remaining AutoMag inventory from Harry Sanford's wife when Harry died in 1997. David moved AMT from California to Sturgis ND and geared up to build 1,000 new AutoMags from the left over parts. I am not sure if any of these "new" AutoMags were ever delivered from AMT/Galena.