
Here’s a great bird gun. Beretta’s BL-line of OUs were imported into the US in the ’60s & ’70s by the Garcia Corporation. With various degrees of engraving and a touch better finishing, I think they’re a bit more refined the 686s. They can bought at better prices, too. This one is Gunbroker.com now. The online auction ends 4/27/2017 @ 2:42 PM.
Here’s the info on it from the seller:

Used Beretta BL-4 20 gauge, 28″ bbls. This gun is in nice condition with only minor scratches and ware to it. None of the marks really stand out on the gun. Marks are noticeable but not bad at all. Overall gun was well cared for by the previous owner. Guns action runs smooth and opens and closes with no issue at all. Top barrel on the gun is Full choke and the bottom barrel is modified. Pictures of the gun should give you a good idea of how it looks.