However, due to the rising production during World War II, the initial design was too expensive for mass production, and its weight defied the concept of a 'Light Rifle'.

[1] The M1944 Hyde Carbine came with a quick barrel change device similar to the MG42.

[2] It used pressed steel components to ease production and reduce weight, making it versatile, reliable, and easier to carry.

The M1944 Hyde sub-machine gun came with an uncommon quick-change barrel system.

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.