What is bendix-hyde second model prototype carbine?

The Bendix-Hyde second model prototype carbine was designed in 1943 and was intended to replace the M1 Carbine used by the U.S. military during World War II. The carbine was produced by the Bendix Aviation Company and designed by George Hyde, who was well known for designing firearms that were ahead of their time.

The carbine had a number of unique features including a rotating bolt, a side-mounted magazine, and a long-stroke gas piston. The side-mounted magazine allowed for larger capacity magazines without making the carbine longer and bulkier. The long-stroke gas piston also provided a smoother and more reliable operation than the M1 Carbine.

Despite its innovative design, the Bendix-Hyde carbine was never adopted by the military. Only a few prototypes were produced before the program was canceled. Reasons for the cancellation ranged from the relative success of the M1 Carbine, to the fact that the Bendix company was primarily an aviation manufacturer, and ultimately to logistical issues with procuring and distributing an entirely new weapon system.