Analysis of information sources in references of the Wikipedia article "Safety (firearms)" in English language version.
The new handguns lack a magazine safety which affects the guns' trigger pulls.
Many law-enforcement agencies, including the Federal Bureau of Investigation, do not want a magazine safety.
Manual thumb safeties on revolvers are most often encountered in the wide variety of commercial and police pocket revolvers made in the last few decades of the 1800s and the first few of the 1900s. Usually double action and folding 5 to 7 rounds of ammunition, smallish revolvers.... A small percentage of these did include thumb safeties, presumably for the very safety-conscious segment of the market.
Manual thumb safeties on revolvers are most often encountered in the wide variety of commercial and police pocket revolvers made in the last few decades of the 1800s and the first few of the 1900s. Usually double action and folding 5 to 7 rounds of ammunition, smallish revolvers.... A small percentage of these did include thumb safeties, presumably for the very safety-conscious segment of the market.
