Mass Firearms School | Firearms Safety Course in Holliston, MA. At Mass Firearms School, you can take the Mass Basic Firearms Safety Course for your License to Carry, among other classes. Train for your LTC in Holliston, MA.. MA Firearms School, Mass Firearms School, Firearms training for the good guys, fire, arms, Massachusetts Firearms School, handgun, handguns, training, ltc, ltc class a, class b, fid card, mansfield fish and game, glock, ma, ri, attleboro, north attleboro, south attleboro, plainville, rehobath, needham, norwood, walpole, sharon, medfield, canton, boston, combat training, nra, certification, safety, national rifle association, goal, gun owners action league, smith wesson, kimber, 40s/w, 9mm, .38 special, .357 magnum, home defense