Product Description The Pro-Mag SIG Sauer P229 Magazine (PROSIGA2) is a dependable, high-quality replacement magazine engineered specifically for the SIG Sauer P229 chambered in .40 S&W and .357 SIG. Constructed from heat-treated steel with a durable black oxide blued finish, this 12-round magazine delivers excellent corrosion resistance and long-term reliability. An injection-molded polymer follower ensures smooth, consistent cartridge feeding with every cycle, while the heat-treated chrome silicone wire spring provides steady, consistent tension throughout the full capacity of the magazine. Proudly made in the USA, this ProMag replacement magazine is an outstanding choice for shooters who demand quality, performance, and value from their firearm accessories. Product Highlights Engineered to fit SIG Sauer P229 pistols chambered in .40 S&W and .357 SIG for broad compatibility 12-round capacity with heat-treated steel body and blued black oxide finish for superior durability and corrosion resistance Injection-molded magazine follower promotes smooth, reliable cartridge feeding shot after shot Heat-treated chrome silicone wire spring maintains consistent tension and extends service life Proudly made in the USA to meet the high expectations of American shooters Specs Brand: Pro-Mag MPN: PROSIGA2 UPC: 708279006432 Compatible Firearm: SIG Sauer P229 Caliber: .40 S&W / .357 SIG Capacity: 12 Rounds Material: Heat-Treated Steel Finish: Blued (Black Oxide) Follower: Injection-Molded Polymer Spring: Heat-Treated Chrome Silicone Wire Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.