A takedown .22 LR like the Taurus model 62 or the Marlin Papoose wouldn't<br>take up that much room and both are available in stainless steel. Remington <br>makes a Marine model of the 870 Pump that would seem ideal if you anticipate <br>any shore excursions and are worried about bears.<br>Have you examined the Ditch Bag that is on this website for ideas?<br><br>