This diagram taken from Browning’s instruction guide for your Auto five demonstrates the bronze friction piece as well as the friction ring. (Image courtesy Browning). The Browning Auto 5 will however work reliably without this adjustment, and seemingly will basically functionality without the bronze friction piece and friction ring put https://www.safeheavenfirearms.com/product/american-tactical-omni-hybrid-maxx-pistol-w-brace-5-56mm-black-7-5%E2%80%B3-atigomx556mp4b/