Not for commercial sale.
All my research indicates that browning never offered the auto-5 shotgun in .410 gauge.
Yes
All my research which goes back to 1909 indicates that FN of belguim never produced a browning auto-5 shotgun in .410 gauge.
No
No
Not as a cataloged item.
Browning never made a .410 automatic shotgun. Autos were made in 12, 16, and 20 guages. They did however make 410's in over/unders. auto5man
The .410 Browning A5 is an urban legend. Browninig never produced a .410 A5. No
No it does not. The Browning BPS Hunter is a shotgun. The "410" signifies the shell size (guage) in this case .410
The book only shows 12 and 20 gauge.
Yes, Connecticut Valley Arms made a 410. We bought a used one recently, but we are having trouble finding any information on it. Hope this helps.