Mec-Gar USA Pistol Magazine, 40 S&W, 13 Rounds, Fits Sig P226, Steel, Black. Anti-Friction Coating MGP2264013AFC MEC-GAR magazines meet or exceeded the tolerance guidelines" stringent testing and exacting requirements of military and law enforcement customers around the world. MEC-GAR incorporates the highest level of quality control measures during the manufacturing process and critical dimensions are regularly checked to maintain tolerance specifications.