ASC 10-76239-SS-BM-B Premium Ammunition Storage Magazines offer superior performance and reliability for your firearm needs. Constructed with heat-treated materials, these magazines promise durability and longevity, making them a favored choice among top firearms manufacturers. Heat Treated for Strength and Durability Chrome Silicon Spring for Enhanced Functionality Manufactured in the USA, ensuring quality craftsmanship Invest in ASC magazines for exceptional reliability and performance in every shot.