This diagram taken from Browning’s instruction guide for your Auto 5 shows the bronze friction piece as well as the friction ring. (Picture courtesy Browning). The Browning Auto five will nevertheless operate reliably without the need of this adjustment, and evidently will truly perform with no bronze friction piece and https://www.safeheavenfirearms.com/product/ruger-10-22-great-white-shark-talo-22lr-18-5-rifle/