Sig Sauer Magazine, 9MM, 12 Rounds, Fits P365, P365X, and P365XL, Steel, Black MAG-365-9-12 Trusted by military" police and civilians for decades" SIG SAUER has earned a worldwide reputation for the unquestioned accuracy and unflinching reliability of its pistols and rifles. SIG SAUER magazines provide exceptional fit and reliable feeding in their high quality firearms.