No problems whatsoever with my Dlask AR ... or my Norinco for that matter. :mrgreen:
As to thermold mags, my Dlask lower will work with them, the issue is one of not dropping free when the mag release is pressed ... uh, pull them out by hand. For match use I will use other mags anyways.
No offense guys, but it seems to me some are exaggerating the troubles they have with these lowers, which are of good quality .... and Canadian made.
BTW, my Norinco rifle will accept and release any AR magazine, Thermolds included, and shoots extremely accurately ... even if it is kind of ugly.