so the soon-to-be Mrs. got me a stripped RRA lower for christmas to do whatever i please. i've shot a lot of ar's and pretty much know what i want to put on it. but first, the pars kits. i've read about the mil-specs and im not sure what to buy. the trigger systems and buttstocks come in commercial and mil-spec. i know mil-spec means military specifications so the mil-specs would be interchangeable. if i got a commercial stock for cheaper, what are the disadvantages?
thanks!
thanks!