I have used hand guards and gloves and gave up on the former long ago.
I found that they always move on the barrels under recoil which means you have to slide them back to the forend after each double. I dare say you can get more grippy ones but these might well damage the black/brown.
My vote will always be for a glove.
If you do opt for a hand guard it is a good idea to make sure yours has the proper cut out for the Anson pushrod catch if required. A while back I came across an old one that appeared to be specially designed for the Scott/Blanch lever catch. Doubt I will ever see another!
