Doesn't surprise me, I think the mids are angry because they don't like gun shops manuevering around them and they like to keep everyone on the rape train that is the 20 round box of overpriced carry ammo.
Can't help you with North Shore shops or MA in general, but, if you reload, pulled HSTs have been available on a limited basis from at least two vendors (online/out of state). I won't mention them here for fear of prosecution.