Using the best materials is of paramount importance that is why Mec-Gar takes into account tensile strength, elongation rate and chemical composition of all raw materials. Before materials are accepted into production they are carefully tested and checked. Made from certified AISI 1010 Carbon Steel. Capacity 17 High Cap Flush Fit Increased capacity to 17-rounds while remaining flush-fit Redesigned tube to improve functionality, heat-treated for strength Anti-Friction Coating allows for easy loading and superior anti-corrosion properties Interlinked internal components