The ETM has the strongest magazine tube yet developed, virtually eliminating feed lip cracks that can spread along the magazine tube. Some of the most common manufacturing and/or age-related defects in other magazines. The real world for a combat pistol isn't always in a dry, protected environment. So the ETM was built to be impervious to the elements. Every component is manufactured from either a high-grade stainless steel or super tough nylon. We worried about grime and corrosion when we designed the ETM, so you will never have to!