- Location
- East of Home, West of the Rest
I am no expert but I think they were over engineered so no need for fine tuning of the gas system. Once they had tooling in place they were produced on a massive scale and because they were over engineered they were not blowing up on the battle field and super easy to maintain hence why so many govermments liked them. Also cheap labour for production.
Mass production does not make a design cheap. It makes prices cheap. There is a difference there that some people don't grasp.