This is the first fully-automatic, magazine-fed NERF gun. It also boasts the largest-ever NERF dart magazine: 18 rounds. Meh. The Springfield XD-M holds 19+1. Back in the realm of toys, the belt-fed NERF Vulcan holds 25 projectiles (two belts can be joined for 50 round capacity). The Stampede will be available this September at fine retailers everywhere.