Developed in the 1970s based on work from the noted designer Richard Casull, the American 180 may be the ultimate NFA "fun gun", coupling a large magazine with the low recoil of the 22 Long Rifle to create a weapon with a reputation for high controllability and ease of use. Of course, the design is not all fun and games; when tested by the Infantry Board at Fort Benning in 1977 it was found to be a very agile close-in weapon. The board also found that automatic bursts from the 180 could achieve deep penetration of hard targets, with short bursts being capable of compromising a flak jacket and longer bursts capable of punching through helmets and cinder block walls. The weapon was also found to be very reliable, with only 25 stoppages (15 operator error, 10 bad ammo) and no broken/damaged components in a 28,000 round test sequence. Like so many who have handled the 180, the Infantry Board testers grew quite fond of the weapon; while earnest that it was not a substitute for a full power rifle in general use, they cited a number of potential applications (including extreme CQB situations, specifically citing GSG-9s raid on Lufthansa Flight 181 as an example, and "selective ambushes"), and called it "the deadliest weapon within its range capability". Winged blade front and adjustable peep rear sights, with the maker's marks on the underside of the frame, a safety switch on the right and a push-through selector button on the sides of the frame, a set of Thompson style pistol grips and a quick detach buttstock. One magazine is included.