This diagram taken from Browning’s instruction e book for that Auto 5 shows the bronze friction piece and the friction ring. (Picture courtesy Browning). The Browning Auto 5 will however function reliably without having this adjustment, and seemingly will in fact purpose without the bronze friction piece and friction ring https://cheapbtapc99mmsemi-automa41650.wikiannouncement.com/8384088/how_buy_b_t_apc9_9mm_semi_automatic_pistol_from_safe_heaven_firearms_can_save_you_time_stress_and_money