The Survivor forend is the way to go for a "pack gun".
I have only seen pics of the Survivor forearm. How much stuff can you actually get in there?? Is it more favorable mostly because it comes off without tools??
cookiemann
I like it mostly for the tool-free disassembley, but it could hold quite a bit of stuff.
I have not made up a kit for it yet, but judging on the size, I figure these types of items would fit;
A sectioned cleaning rod such as a "Rapid Rod"
waterproof container for matches
small fishing tackle set in a soft container (ziplock bag)
a couple of shotgun rounds
a small first aid kit
etc.
I won't be putting anything heavy in there because I don't want to change the balance of the gun. I will also be making a custom gun case for it out of military grade canvas, with a carry strap and loops so I can attach it to the side of my ALICE pack.