Austrian troops on the firing line during a combat exercise.

7. STEYR AUG
Type: Semi or Fully Automatic Bull-Pup Assault Rifle
Country of Origin: Austria
Caliber: 5.56 x 45 mm (.22 inch)
Cartridge Capacity: 30 and 42 rounds
Muzzle Velocity: Approximately 3,084 feet per second
Rate of Fire: 650 rounds per minute

Looking more like a weapon from a science-fiction movie, the Steyr's only serious "flaw" is the advanced design that seemed to scare away potential customers after its introduction in 1977. In this radically new "bull-pup" configuration most of the barrel, receiver and action, instead of being in front of the operator's firing hand, is all moved back in the stock, resulting in a remarkably compact weapon that is light and easy to handle. The Steyr also features an interchangeable barrel system, a transparent magazine, and optional left or right shell ejection capability.

VIDEO: See the Steyr Aug in action.
PUZZLES: Put together these combat rifle puzzles.