FX Crown MK2 GRS Green Mountain Laminate that made the Impact such a groundbreaking rifle, and puts that adjust-ability into a standard sporter stock. But not just any stock, this FX Crown features the beautiful Green Mountain Laminate stock. Truly a stock that matches the quality and precision engineering that is houses the internals of the Crown. The FX Crown is a shooters dream. Much like a high performance race car, you can adjust and fine tune the Crown to achieve the highest accuracy of perhaps any rifle! Starting with the new FX Smooth Twist X barrel system. This new system allows you to now only change the caliber of the rifle (from .177 up to .30 cal) but you can also now exchange the barrel liner itself to further tailor your barrels twist rate and choke to the pellet of your choice. The Smooth Twist X system is housed in a fully shrouded barrel to keep things ultra quiet. In the coming months expect more and more barrel liner options to be offered as add on accessories for your FX Crown.