Magpul AMAG 17 SG9 Stainless Sig Sauer P320 9mm Luger Handgun Magazine - 17 Rounds - The AMAG 17 SG9 is a 17-round SIG 9mm Handgun Magazine featuring a stainless-steel body with polymer sub-components. Magpul SIG magazines come with many of their standard proven features, including a high-visibility,controlled-tilt follower, stainless-steel spring, flared floorplate that's easily removable for cleaning and routine maintenance, paint-pen dotmatrix for magazine marking, and capacity-indicator windows which begin at five (5) rounds, and continue along the spine of the magazine in one(1)-round increments. Like all Magpul's polymer products, the AMAG 17 SG9 is designed, engineered, and manufactured only by Magpul for absolute reliability every time you use them. Corrosion-resistant, stainless-steel magazine body High-visibility, controlled-tilt follower Stainless-steel spring for longevity and durability Flared, easily removeable floorplate for easy maintenance Capacity indicators starting at 5 rounds, continue in 1-round intervals Paint-pen dot matrix Compatible with all P320 / M17 frame sizes