Do kB!s occur in other guns or just in Glocks?
kB!s do, of course, occur in other guns, but no one appears to be keeping accurate statistics for most of them. Many 1911-style handguns have partially unsupported case mouths, and numerous case separations have occurred in these guns. Early .38 Super barrels were particularly susceptible, and the critical observer may have noticed the predilection among USPSA .38 Super competitors for full beards in an attempt to cloak the vestiages of what came to be known as “super face.” Respected firearms author Frank James, in 1994, documented a number of kB!s in HK USP .40 pistols, which do have fully supported chambers. (Also see this!