PMG's Thom Dolder vacuumpacker.com explains how to use the MiniPack MVS31 to seal long bags outside the chamber using textured bag material. This works with most chamber style units with the correct vacuum sealing bag material.
you would be surprised how handy this would be for lots of preppers. A gun does come to mind, but so does a large blanket, or a sleeping bag or a bed roll. What about a bag of retort canning in a cabin? I can think of a lot of things that would be best preserved this way. I dont have carpet in my suite so I dont have a vacuum so I wouldnt be able to do the giant ziploc bag thing so this would be ideal. Yes the bag cost a lot but so does spoilage and the bags can be reused.