It seems Mossberg is now offering a shotgun in a can. Along with a pistol grip 18 inch Mossberg 500 sealed in a re-sealable clear bag,
the buyer gets an olive drab "heavy duty" waterproof synthetic carrying (burying?) tube complete with re-sealable top and nylon carrying strap. They are calling this their JIC (Just In Case) line of shotguns. MSRP for the Cruiser version is $422.00. The Mariner and a tactical tan version are also available. Way to cash in Mossberg!
I'm kind of thinking a chunk of sealed schedule 40 PVC with a rifle that will fire a common military round packed in cosmoline might be a better choice. But then what do I know? I lost all my guns in a boating accident on Lake Manigottapee.