(10 Sep 2014, 8:56 pm)aureolin wrote M2A serves both stops at Barmston. Loops the usual M3 stop then goes back and through the buslink as the M2 would. M3A runs once a day, but after the Galleries does Bidding, Fatfield, Harraton, rickleton, Birtley, then Chester Le Street.
M2A also follows the M3 Route from Concord to Heworth also, and I am sure it follows a slightly different Route into Birtley compared to the M2.