I have a LMT MRP which I love to shoot and use hug hunting. But would love to take it whitetail hunting here in Texas. While LMT makes a 6.8SPC barrel, they don’t make at 6.5 Grendel barrel. I’ve seen some post in different places about getting a barrel converted to fit the MRP upper. But the sites they refer to are down (gone) Does anyone have any suggestions where to look / go to get a 6.5 Grendel barrel for my MRP?