Hardened steel feedlips and frame provide seamless ammunition feeding. Patent pending Omega Joint and frame wraps 360 degrees for maximum strength and 100% drop-free reliability. Factory reliability. Military-grade Teflon-infused coating meets all military standard for corrosion and friction resistance. Extreme impact resistance with our patent pending fusion of polymer and hardened steel. Ergonomic floorplate design allows for an easy grip to pull from pouches. Weighs 50% less than an all-steel magazine. Product Features Fits the Sig Sauer P320 Red follower and locking plate Standard 17-round capacity Base plates interchangeable with ETS line of 9mm double stack magazines. Due to the wide variety of extensions for Glock, the mag base is designed to be compatible with Glock extensions Easy disassembly with our specially designed base plate Lifetime Warranty Product Specifications Manufacturer: Sig Model: P320 Caliber: 9 MM Magazine Capacity: 17 Round