NYLON AR15 MAG FEATURES Available in Black State-of-the-art long fiber polymer provides unmatched toughness and durability Improved feed lip geometry allows better compatibility with more receivers Over insertion tab is larger to increase mag retention Standard 30-round capacity Compatible with .300 Blackout No tilt follower with reliable bolt open on last round Fast and easy disassembly for maintenance without tools via our specially designed floor plate Ergonomically designed floorplate makes it easy to grab from mag pouches Magazine grip ribs gives you superior control Lifetime Warranty ADVANCED POLYMER BENEFITS Extreme Impact Resistance-won't crack or break when dropped Very resistant to harsh chemicals Superior heat, cold and UV resistance-won't become brittle over time even when exposed to harsh environments or extreme cold Creep resistant-the feed lips and body won't spread when being stored long term even when fully loaded