What are browning auto 5 barrel lengths and chokes?

It all depends when the gun was made that will determine what lengths and chokes were made available. It is important that the address of the barrel matches up with years of mfg. Although any additional barrels made need fitting to your gun, it is best to keep barrel addresses original. In general throughout time, A5 barrels were made from 24"-32" depending on the year. Not all chokes were available certain years. They varied, but were offered from cylinder to full during the history of the gun 1923-1930 Ogden Utah 1930-1958 St Louis Mo. 1959-1968 ST Louis Mo & Montreal 1969-1978 Morgan Utah & Montreal. 1976-1998 Japan marked barrels auto5man