Sometimes, using polymer to construct reliable magazines just isn t possible. In cases where physics precludes polymer, Magpul s new alloy magazines (AMAGs) are built with the same quality and dependability standards that you d expect out of a PMAG . The AMAG 15 SG9 is a 15-round 9mm magazine made for SIG P320 Compact frame handguns, and it features a stainless-steel body with polymer sub-components. The AMAG 15 SG9 includes many of our advancements in magazine design. This includes a high-visibility, controlled-tilt follower for precision feeding of every round. The stainless-steel spring is corrosion-resistant and maintains the exact required tension for repeated loading and firing. The rugged, flared floorplate is easily removable for cleaning and routine maintenance. Visually, the capacity-indicator windows begin at five (5) rounds and continue along the spine of the magazine in one (1)-round increments, and the paint-pen dot matrix allows custom marking to provide quick ID of magazine loads and use. Made in the USA. Product Features Corrosion-resistant. stainless-steel magazine body High-visibility, controlled-tilt follower Stainless-steel spring for longevity and durability Capacity Indicators in one-round intervals starting at five rounds Flared. easily removable floorplate for maintenance Paint pen dot matrix panel on the bottom to allow for identification marking Product Specifications Manufacturer: Magpul Model: Sig P320 Caliber: 9mm Magazine Capacity: 15-Round Additional Features: Silver Stainless Steel