Although I already bought my LMT, if I was looking for a Piston AR, that Stag sure looks good and Stag has good reputation for quality. I like the picture of the skids on the BCG to prevent Carrier tilt. Although if you're really worried, Questar sells a buffer tube with an extended lower lip to prevent carrier tilt wearing out the lower receiver. I got one for my LMT and it works well, also has 2 holes for QD sling mounts too.