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One of the many articles in our newsletter:
Metal vs. Polymer
C Products Defense has been winning OEM contracts across the globe because of the performance of our metal magazines (stainless steel and aluminum). Polymer magazines, which have beenbanned by the United States military since May of 2012, are hygroscopic in nature, in other words, they have a strong affinity to attract moisture and will absorb moisture onto their molecular structure when exposed to the ambient air. This moisture within the polymer reacts constantly with the surrounding environment.
At the molecular level, water vapor, surrounding a hygroscopic polymer element is absorbed into the polymer. As the vapor pressure within the polymer increases to equal the vapor pressure surrounding the polymer, equilibrium occurs. This is referred to as polymer moisture equilibrium or PME. When an environment of hot, dry air surrounds a wet hygroscopic polymer element, the vapor pressure surrounding the polymer is lower than the vapor pressure within the polymer. Consequently, the moisture within the polymer begins to migrate toward the area of low vapor pressure outside the polymer. Expose the polymer to a hot, dry atmosphere for a sufficient period of time, the polymer eventually reaches moisture equilibrium with the surrounding dry conditions. In other words, the polymer becomes dry and deformation will occur, changing its shape from its original design.
The opposite is also true,when the moisture within the polymer is cooled sufficiently, say below the freezing point, the moisture will actually freeze and the polymer will crack as happened and reported by the Chicago Swat Team this past winter. Officer Frank Gaber, who is the Armorer and Instructor for the Chicago Swat, reported that this past winter they had multiple reports of a polymer mag shattering (and bullets scattering) when they were dropped on a hard surface. This was actually due to the moisture within the polymer and when that moisture froze it caused the magazines to shatter."
Consequently, the only magazines that the Chicago SWAT Team will use are C Products Defense magazines.
Finally, we all know how moisture attracts dirt and dust and gives it a place to collect. In a firearm, dust and dirt gives way to a corrosive cocktail which will lead to excess wear and eventually early failure of the firearm.
Aluminum or stainless steel do not have an affinity for moisture and any moisture (through condensation or immersion) remains on the surface and is easily removed by evaporation or just wiping it down. No moisture is absorbed into the metal. And our proprietary coating which bonds at the molecular level and will never wear off, decreases the coefficient of friction and increases the lubricity which means that even if you are using the dirtiest ammunition on the planet, our magazines will not jam because there is no dirt and dust accumulation or attraction.
- Bill Rogers, VP Sales & Marketing and Certified Law Enforcement Armorer