Enhance your shooting experience with the ProMag Industries SIG-A20-FDE 21-Round Magazine for Sig Sauer P320 9MM. This reliable magazine is designed for performance and durability, ensuring you are always prepared. Crafted in the USA, ProMag magazines come with a lifetime guarantee against manufacturer defects. Every component undergoes meticulous inspection to deliver unmatched quality and reliability. 21-Round Magazine Fits Sig Sauer P320 9MM Pistol Magazine Body Constructed of Heat Treated Steel with Black Oxide Finish Flat Dark Earth Endplate Injection Molded Magazine Follower Magazine Spring Formed From Heat Treated Chrome Silicone Wire Made in the U.S.A. Trust ProMag for dependable magazine performance and superior craftsmanship.