Apparently the Slam-bolt is different enough that it will probably be able to dodge this. The patents that Dye bought rights to are apparently the ones formerly held by Gen-E. That means that Dye can, they argue, stop the use of any design that is essentially the same, even if tolerances are improved or different materials are employed or what have you, so long as the patent of the part in question post dates the Gen-E patent.
I think that Dye avoids being a monopoly because A) there are many other paintball markers available, and you don't have to buy theirs, and B) they don't have a little shoe, car, clothes iron, scottish terrier, or thimble in any of their products. I think that they will not only pass GO, but will also collect at least $200.