ETS's AR15 magazine with coupler features a built-in coupler which allows multiple mags to be connected together in seconds with no tools or extra parts. This mag features a no tilt follower with reliable bolt open on the last round. It has a clip on the dust cover to keep dirt and debris out during storage. The AR mag also has fast and easy disassembly for maintenance without tools via ETS's special designed floor plate. The ergonomically designed floorplate makes it easy to grab from mag pouches.