Which revolutionary product design principle, first implemented in the M1 Garand rifle during WWII, fundamentally changed infantry weapons manufacturing and is now standard in modern consumer product design?

Test your knowledge about how product design principles have shaped military equipment throughout history. Military innovation has always balanced form and function, with designs evolving based on battlefield needs, technological capabilities, and human factors. From ancient armor to modern weapon systems, the evolution of military product design reflects broader principles that influence consumer products today. This poll explores a fascinating aspect of how military equipment design has changed over time.

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Modular component design with interchangeable parts
Ergonomic grip positioning based on anthropometric data
Semi-automatic operation with gas-powered cycling
Use of synthetic materials instead of traditional wood