This info is for dgludwig and all other Browning Double Automatic fans on SW. These steps will allow you to really clean your DA. Video link on page 4 of this thread. Start by placing the breechblock in the rearward position. Pull the forend latch
and then lower the forend.
Now the barrel should slide off the front of the gun.
Next, retain the breechbolt with one hand and release the carrier latch with the other. Gently and slowly allow the breechbolt forward and it will stop against the receiver. Remove the buttplate or recoil pad and remove the stock bolt.
With the stock removed, look into the rear of the receiver. You will see that there are two pins that hold the trigger group in the receiver. There are small notches that you need to engage with a screwdriver(be gentle) or button hook (works best) to start to retract these pins. Once they are part way out
grab them with pliers and completely remove. Once they are out, note that one rod is longer then the other. This will be important when the gun wants to go back together! The long rod goes on the left side of the gun (left of the gun as if you are looking down the barrel). With the pins out the trigger group will now slide down and out of the receiver.
Turn the gun over and unhook the inertia block from the breechblock link. This can be tough at first you just need to lift the hook, push the inertia block rearward, and rotate it just a little. This rotation will "catch" the inertia block and keep it from going forward.
Once this is accomplished the breechblock link will swing down.
The breechblock assembly will now slide out the front of the receiver. The operating handle will slide rearward and out of the breechblock assembly.
With these parts removed, the gun is down to parts that you can really get clean.
I don't remove the forend of my DA's when I do this type of clean up. I use Clenzoil and am not afraid of it damaging the wood. If you choose to remove the forend, take the barrel off the gun. There is a pin at the front of the forend wood that holds it on the gun.
This pin will push out with a punch or other device. The wood will now slide forward and off the recoil unit. With the forend off the recoil unit is now exposed. You can see a top view of it in this previous picture.
I DO NOT mess with this recoil unit. The Browning Auto 5 guys are comfortable turning that friction ring back and forth for different loads. The DA's unit is adjustable but I have never seen one that would not cycle any new factory shell, big or light. One thing to keep in mind is that these shotguns were put together by hand. If you are having trouble with a part not coming out or back together, you are doing something wrong. These guns will only come apart and back together one way, the right way.
If you are not familiar with the Browning Double Auto, take a close look at these photos. The short recoil unit, the easy barrel removal which keeps the forend on the gun, the sliding safety, the speed loading system, and the style are unique and ahead of their time. This is a great gun and I hope this post informs SW users on a overlooked classic Browning shotgun.