ASC Stainless Steel magazines improve on a classic design, offering the highest durability and longer lifespan-simply the best in the industry! ASC's magazines are entirely manufactured in the USA, using .020" gauge 410 Stainless Steel Alloy and heat-treated for enhanced strength and durability. Their magazines are also chemically treated for corrosion resistance.Features :Compatible With: 6.8 SPC410 Series Stainless Steel BodyChrome Silicon SpringsEnhanced Anti-tilt Polymer Followers300 Series SS Floor PlateMag Color: Flat Dark Earth