10 round 5.56 NATO magazine engineered as an enhancement of the standard STANAG design. 10 round maximum capacity due to internal limiter. The bottom of the magazine is PERMANENTLY sealed and cannot be readily restored. Gray follower buttons indicates 20 round block. MFT stipple texture, low profile front ribs and flared floor plate aid in extraction and handling. The floor plate provides drop protection, has a paint pen dot matrix area for easy identification marking and is compatible with tight double and triple magazine pouches. One fully functional drain hole ensures full and proper draining. Long-life stainless steel spring and four-way anti-tilt follower ensure reliable feeding. Oversized mag catch notch in the rear of the magazine provides enhanced reliability of the bolt catch operation.