3x0.5 thread
It depends on which sight is mounted. Recommend you check the manual and consult your local gunsmith use the link below
No
Your browning auto-5 wa made by FN of belguim for browning in 1931.
FN Browning ser # 346001 to 387000 mfg 1952
your browning auto-5 was made in 1927.
your browning auto-5 was made in 1925.
No
With the serial number that you provided,your browning auto-5 shotgun was made by FN of belguim for browning in 1907.
They refer to this handgun as the browning model BDA (browning double action auto) pistol.
Your browning auto-5 magnum shotgun was made by FN of belguim for browning in 1965.
what is the question?
Your browning model auto-5 12 ga was made in 1928.