This diagram taken from Browning’s instruction guide for your Auto 5 exhibits the bronze friction piece and also the friction ring. (Picture courtesy Browning). The Browning Auto five will still function reliably without this adjustment, and apparently will in fact perform with no bronze friction piece and friction ring set https://cheap-b-t-apc9-9mm-semi-a08529.wikinewspaper.com/3782526/the_exploring_the_versatility_of_the_b_t_apc9_9mm_semi_automatic_pistol_diaries