M1944 Hyde Carbine

The M1944 Hyde Carbine was developed by George Hyde, designed to be a light rifle for the US Armed Forces. The overall weapon was based on the Thompson Submachine Gun, which Hyde drew inspiration from in many of his weapon designs.

An original .30 Carbine based on the M1921/27 variants worked well. However, due to the World War II production boom, the initial design was too expensive for mass production, and its weight defied the concept of a 'Light Rifle'.

The M1944 Hyde Carbine came with a quick barrel change device similar to the MG42. It used pressed steel components to ease production and reduce weight, making it versatile, reliable, and easier to carry.

Overview
The M1944 Hyde sub-machine gun came with an uncommon quick-change barrel system that was most likely copied from the German MG42. The bolt has a similarity to a rat-tail, similar to the Solothurn MP-34, where the spring is contained within the buttstock.

Photos of the Hyde gun appeared in the first edition of The World’s Assault Rifles by Daniel Musgrave and Thomas B. Nelson, published in 1967. No known examples of the M1944 Hyde Carbine remain in existence.

Ammunition types
The ammunition used by the military with the carbine include:
 * Cartridge, Caliber .30, Carbine, Ball, M1
 * Cartridge, Grenade, Caliber .30, M6 (also authorized for other blank firing uses, due to a lack of a dedicated blank cartridge)
 * Cartridge, Caliber .30, Carbine, Dummy, M13
 * Cartridge, Caliber .30, Carbine, Ball, Test, High Pressure, M18
 * Cartridge, Caliber .30, Carbine, Tracer, M16 (also rated as having an incendiary effect)
 * Cartridge, Caliber .30, Carbine, Tracer, M27 (dimmer illumination and no incendiary effect)