Marketing has convinced us that we need a primary defensive arm that has had 5,000 rounds put through it and a Ship of Theseus makeover to prove reliability before it can be taken seriously, but even the most notable one-shot drops have been done with bare bones, unexciting pieces like a Kel-Tec pocket gun or an unlubed M&P Sport.
People cite the autist that runs "School of the American Rifle" on YouTube as to why a PSA BCG is inefficient because it leaks gas but they don't realize that, because it still functions and tosses projectiles with a vague sense of accuracy, even a poorfag can protect his castle when the door gets kicked in at night without buying a BCM or LRT or what have you.