A number of crude homemade firearms ready to be destroyed as part of a United Nations ‘community safety program’ in Haiti.
Below is a very simple .22 zip gun made using a threaded pipe fitting capped with a hose nipple on both ends, one acting as a barrel. The weapon is fired by pulling back the striker bar which is under spring tension, then releasing.
Two more examples using this ultra simple assembly method, one being able to chamber nail gun blanks:
On this example of a stapler conversion, the barrel (a steel tube) is attached to a piece of tree branch which rotates via a screw to allow the loading of nail gun charges + a projectile. Everything needed for this pistol can be purchased at any hardware store and assembled within minutes.