The Saturday Night Specials of the 1960s and '70s were usually small caliber simply because they couldn't safely build a .38 Special or .380 out of pot metal. Then along came the California "Ring of Fire" companies like Jennings and Lorcin who didn't care if their guns fell apart and hurt the shooter when firing. The reason why those companies kept going bankrupt then re-forming under new names was because they were constantly being sued by injured owners of their firearms.Kel Tec P11 9mm and FEG PA63 9mm MAK. I'm not sure about the 'small caliber' requirement for 'Sat. nite specials'. A cheap .38 special would certainly qualify.
Remember it was anti-gun legislation that called the Baby Browning and Walther PPK Saturday Night Specials. Speaking of Glocks, when the first ones were imported into this country they all came with adjustable sights so that they would have enough "import points" to not be considered Saturday Night Specials. Once here in the USA Glock would remove those sights and put on fixed ones. Later when the Gen 3 models came out the thumb depressions and finger grooves qualified as "target grips", which added enough points that they no longer needed to import them with target sights.A lot of these dont qualify as a SNS. I mean come on man. A Glock is definitely NOT an SNS and neither is a baby browning.