I am thinking about assembling an AR15 in 6.5 Grendel.. I bought 3 AR lower receivers a few years ago, just finished one in 5.56 Wylde and have all the parts for a second in same caliber. I thought I would assemble the third in the Grendel. Started looking at options and Bear Creek has assembled uppers for quite a bit less than I can find the parts cost I can find. Just wondering if anyone has used their parts or assemblies and what the quality is and the company's rep. Sure be grateful for your experiences. Thanks.