I was just goofing around with this thing trying to make it take down easier and I actually succeeded. Yay!
Things you need:
An H&R or NEF break-action shotgun or rifle
A phillips-head screwdriver
For this brief tutorial I'll be using my NEF SB1 series .410 bore shotgun.
First, take your screwdriver and remove the large screw holding the forestock to the barrel.
With the forestock free, remove the two screws holding the little plastic bit to the end of the wood.
Reattach the forestock, sans plastic bit.
That's it! The barrel will now pop free of the frame when you want it to, but remain securely locked when the breech is closed. You will want to take a bit more care when the breech is open, but it's not going to just fall off. And if it isn't as secure as you want, the process is easily reversed.
I made a quick video showing how easily it takes down and reassembles, located here: https://www.youtube.com/watch?v=F0UlkB87oo4