This is the ETS Gen 2 AR-15 30-round nylon magazine. It fits AR-15/M4 rifles chambered in .223 Remington and 5.56x45mm NATO. ETS also reports it is compatible with .300 AAC Blackout rounds.

• Available in Black, FDE, and OD Green
• 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