Papua New Guinean villagers sometimes resort to producing homemade guns, for defence, hunting, warfare or robbery. This example was made in 2000 by an I’ai man from the Purari Delta who collected the component waste materials in the towns of Port Moresby and Kerema.

The barrel is made from a bulldozer’s hydraulic dipstick, the firing spring is an old bedspring, and the firing pin is a pointed bolt set into part of a window wiper. The hammer is kept in the cocked position with a piece of nylon attached to a latch, which acts as the trigger. It fires a single .22, the heaviest and most practicable rim-fire cartridge. The low cost, noise, and recoil of the .22 makes it the best-selling ammunition in the world.