Randall or ColdBlue or Grant (or anyone else w/ the facts who cares to answer)-
Are there any benefits to the new KAC-style barrel dimpling (ala the KAC PDW) as opposed to fluting?--For rigidity, cooling, weight-reduction, etc., which is better and why?
It definitely "looks cool" but if the dimpling is the latest and greatest thing, then how come more people aren't doing it and it hasn't been around until just recently? Any info would be appreciated. Thanks.