The WGP Autococker Flatline is an odd beast, combining the marketing power of closed bolt with that of a flat trajectory. It is certainly hindered by its appearance and clunkiness factor, which is hard to overcome by marketing alone. The front of the marker is machined to accept an adapter block that holds the flatline as well as a tippmann detent to prevent roll-outs. While it does work just fine, a dedicated flatline marker (you can't simply remove the flatline and install regular barrel) with the complexities of an autococker is not an easy sell.
