Trusted by law enforcement personnel and informal target shooters across the country, the Sig Sauer® P320 / P250 9mm 10-Round Magazine is a California-compliant OEM pistol magazine, engineered to deliver smooth feeding performance and unwavering reliability in virtually any target shooting or tactical shooting application. The high-tensile music wire spring and low-friction, anti-tilt polymer follower deliver smooth, snag-free feeding performance for unmatched reliability in self-defense applications, and the impact-resistant polymer floor plate is easily removed for quick cleaning and maintenance when required. Factory-drilled and numbered witness holes offer quick, visual round counts for added reliability in the field, while the precision-engineered feed lips and advanced interior and exterior geometries deliver a snug, wobble-free fit for exceptionally smooth performance. Better yet, this centerfire pistol magazine features a flush-fit design for comfortable, snag-free carry and improved comfort and control in fast-action shooting engagements.