The RT upgrade is much much cheaper and just as fast, so it's a better deal. It's also sorta more fun because just about every other gun has an electronic trigger to them, but very few, only the Mag RT (or with retrovalve), Emag, and Reflex Cocker have reactive triggers. They take a little more skill to use, but believe me once you get one to where you can shred with it, there's nothing out there faster or more fun.