The Battle Arms Enhanced Magazine Release Assembly features a unique, fully solid "V" shaped button face with horizontal serrations (no through hole). The concave V-Groove button face offers an excellent ergonomic feel and self-centers the index finger as pressure is applied. The horizontal, parallel serrations help with slippage in the vertical orientation while minimizing drag in the horizontal direction for finger retraction. The BAD-EMR also features a lightweight skeletonized back to offset the weight gained from the fully solid button face and slightly increased height to equal the weight of the standard mil-spec magazine release (approximately 0.002 lbs). BAD-EMR is compatible with all lower receivers that accept mil-spec magazine release buttons.