Locks in place magwell very well, 30 round capacity. I wouldn’t force the last one in. Spring issue at times. Gets stuck on last 3 rounds (spring isn’t forced up) once in a while when constantly used. Durable (handles drops from reload). Would recommended a better/stiffer/stronger spring that stays inline as it’s pushed down with rounds so when firing it alleviates pressure straight upward. Love that you can identify with clear mag.