Clubs are certainly bearable weapons as contemplated by the second amendment and the California ban was recently "clubbed down" https://reason.com/volokh/2024/02/23/court-strikes-down-california-ban-on-possessing-billy-clubs/ The court struck down the law on Second Amendment grounds (citing, among other cases, Caetano v. Massachusetts (2016), which suggested that stun guns were constitutionally protected arms). The historical analysis is long and detailed (read it here), but here's the conclusion:........ To give full life to the core right of self-defense, every law-abiding responsible individual citizen has a constitutionally protected right to keep and bear arms like the billy for lawful purposes.
