Tactical=black with a rail and at least $100 higher price tag.
In all seriousness, tactical has become a marketing term and doesn't really have any hard and fast meaning. Any number of features can be deemed enough to make a gun tactical by the manufacturer including a different barrel length, different finish, different magazine capacity, presence of a rail, etc.
Anymore, it's a word that's thrown around rather loosely in order to sell stuff. Kind of like how nearly every new cartridge has to have the word "Magnum" in the name.
That's no fair! She can pull off a tactical reload without even having to remove her hand.. er, hoof.. from the fore end of the rifle! (starts to try to remove magazine from AR with mind alone, stops when headache starts to take hold) *grumble, grumble*
Twilight's vest, cutting out a pattern snip by snip, Making sure the Spectra folds in nicely, It's the perfect camo and so hip! Always got to keep in mind my pacing, Making sure the plates correctly facing. I'm stitching Twilight's vest~