At the risk of sounding like a broken record, SIG Sauer broke out their big brains with the wildly successful P320 and P365 families of pistols. Not only were they designed to be modular, with serialized fire control units in their grip modules, SIG also supported third-party companies in developing accessories for them. This created a robust aftermarket and ecosystem around SIG’s handguns.
One of the most significant modifications you
