I have one I put together with a Compass Lake/MSTN barrel years ago that has been my favorite AR ever since. I have never found the SPR contour barrel to be heavy at all. That rifle shoots like crazy but has recently been replaced as my favorite by a 16" match-barrel-equipped rifle that fits what most are calling the "Recce" description. Mine wears an Apex tubular handguard that's my current favorite and shoots tiny groups with 75-77gr match ammo and shoots 1 MOA with ball ammo.
If I think I'll need to go beyond 400yards or so, I'll grab my 16" .308 AR.
