Elite Tactical Systems Carbon Smoke Series AR-15 Gen 2 5.56 30 Round Magazine Non-coupled Carbon Smoke 30RD. Their mags come with enhanced features like non-tilt followers" creep-resistant feed lips and clear body allowing you to see count and ammo type" leaving nothing to chance. Specifications for Elite Tactical Systems Carbon Smoke Series AR-15 Gen 2 5.56 30 Round Magazine Non-coupled: Manufacturer: Elite Tactical Systems Fabric/Material: Polymer Magazine Capacity: 30 Round Caliber: 5.56x45mm NATO Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Country of Origin: USA Improved feed lip geometry allows better compatibility with more receivers Package Contents: Elite Tactical Systems Carbon Smoke Series AR-15 Gen 2 5.56 30 Round Magazine What firearm models does the manufacturer say Elite Tactical Systems Carbon Smoke Series AR-15 Gen 2 5.56 30 Round Magazine Non-coupled is compatible with? The manufacturer says that Elite Tactical Systems Carbon Smoke Series AR-15 Gen 2 5.56 30 Round Magazine Non-coupled is compatible with AR-15Elite Tactical Systems SMK-AR15-30G2-30RD: Carbon Smoke Series AR-15 Gen 2 5.56 30 Round Magazine Non-coupled Unisex