Survival weapons need to be compact in design while also powerful enough to defend yourself against large groups of enemy combat forces, bears, zombies, or whatever else is trying to kill you in the jungle. Leave your .380 sidearm for hunting squirrels, and opt for the U.S. Survival AR-7 ($290+) instead. This portable, semi-automatic weapon boasts an 8 round .22 LR magazine and weighs in at only 3.5 pounds. When disassembled, the waterproof barrel and receiver tuck away seamlessly and safely into the water and impact resistant stock, rendering it portable enough to keep with the rest of your everyday carry.